Deprecated (16384): The ArrayAccess methods will be removed in 4.0.0.Use getParam(), getData() and getQuery() instead. - /home/brlfuser/public_html/src/Controller/ArtileDetailController.php, line: 73
 You can disable deprecation warnings by setting `Error.errorLevel` to `E_ALL & ~E_USER_DEPRECATED` in your config/app.php. [CORE/src/Core/functions.php, line 311]
Code Context


        trigger_error($message, E_USER_DEPRECATED);

    }
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 You can disable deprecation warnings by setting `Error.errorLevel` to `E_ALL & ~E_USER_DEPRECATED` in your config/app.php.'
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deprecationWarning - CORE/src/Core/functions.php, line 311
Cake\Http\ServerRequest::offsetGet() - CORE/src/Http/ServerRequest.php, line 2421
App\Controller\ArtileDetailController::printArticle() - APP/Controller/ArtileDetailController.php, line 73
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Cake\Http\ActionDispatcher::_invoke() - CORE/src/Http/ActionDispatcher.php, line 120
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Cake\Http\BaseApplication::__invoke() - CORE/src/Http/BaseApplication.php, line 235
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Cake\Http\Runner::__invoke() - CORE/src/Http/Runner.php, line 65
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Cake\Http\Runner::__invoke() - CORE/src/Http/Runner.php, line 65
Cake\Error\Middleware\ErrorHandlerMiddleware::__invoke() - CORE/src/Error/Middleware/ErrorHandlerMiddleware.php, line 96
Cake\Http\Runner::__invoke() - CORE/src/Http/Runner.php, line 65
Cake\Http\Runner::run() - CORE/src/Http/Runner.php, line 51
Cake\Http\Server::run() - CORE/src/Http/Server.php, line 98

Deprecated (16384): The ArrayAccess methods will be removed in 4.0.0.Use getParam(), getData() and getQuery() instead. - /home/brlfuser/public_html/src/Controller/ArtileDetailController.php, line: 74
 You can disable deprecation warnings by setting `Error.errorLevel` to `E_ALL & ~E_USER_DEPRECATED` in your config/app.php. [CORE/src/Core/functions.php, line 311]
Code Context


        trigger_error($message, E_USER_DEPRECATED);

    }
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 You can disable deprecation warnings by setting `Error.errorLevel` to `E_ALL & ~E_USER_DEPRECATED` in your config/app.php.'
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deprecationWarning - CORE/src/Core/functions.php, line 311
Cake\Http\ServerRequest::offsetGet() - CORE/src/Http/ServerRequest.php, line 2421
App\Controller\ArtileDetailController::printArticle() - APP/Controller/ArtileDetailController.php, line 74
Cake\Controller\Controller::invokeAction() - CORE/src/Controller/Controller.php, line 610
Cake\Http\ActionDispatcher::_invoke() - CORE/src/Http/ActionDispatcher.php, line 120
Cake\Http\ActionDispatcher::dispatch() - CORE/src/Http/ActionDispatcher.php, line 94
Cake\Http\BaseApplication::__invoke() - CORE/src/Http/BaseApplication.php, line 235
Cake\Http\Runner::__invoke() - CORE/src/Http/Runner.php, line 65
Cake\Routing\Middleware\RoutingMiddleware::__invoke() - CORE/src/Routing/Middleware/RoutingMiddleware.php, line 162
Cake\Http\Runner::__invoke() - CORE/src/Http/Runner.php, line 65
Cake\Routing\Middleware\AssetMiddleware::__invoke() - CORE/src/Routing/Middleware/AssetMiddleware.php, line 88
Cake\Http\Runner::__invoke() - CORE/src/Http/Runner.php, line 65
Cake\Error\Middleware\ErrorHandlerMiddleware::__invoke() - CORE/src/Error/Middleware/ErrorHandlerMiddleware.php, line 96
Cake\Http\Runner::__invoke() - CORE/src/Http/Runner.php, line 65
Cake\Http\Runner::run() - CORE/src/Http/Runner.php, line 51
Cake\Http\Server::run() - CORE/src/Http/Server.php, line 98

Warning (512): Unable to emit headers. Headers sent in file=/home/brlfuser/public_html/vendor/cakephp/cakephp/src/Error/Debugger.php line=853 [CORE/src/Http/ResponseEmitter.php, line 48]
Code Context
            if (Configure::read('debug')) {

                trigger_error($message, E_USER_WARNING);

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</span></span></code>
<span class="code-highlight"><code><span style="color: #000000">&nbsp;&nbsp;&nbsp;&nbsp;&lt;link&nbsp;rel="canonical"&nbsp;href="<span style="color: #0000BB">&lt;?php&nbsp;</span><span style="color: #007700">echo&nbsp;</span><span style="color: #0000BB">Configure</span><span style="color: #007700">::</span><span style="color: #0000BB">read</span><span style="color: #007700">(</span><span style="color: #DD0000">'SITE_URL'</span><span style="color: #007700">);&nbsp;</span><span style="color: #0000BB">?&gt;&lt;?php&nbsp;</span><span style="color: #007700">echo&nbsp;</span><span style="color: #0000BB">$urlPrefix</span><span style="color: #007700">;</span><span style="color: #0000BB">?&gt;&lt;?php&nbsp;</span><span style="color: #007700">echo&nbsp;</span><span style="color: #0000BB">$article_current</span><span style="color: #007700">-&gt;</span><span style="color: #0000BB">category</span><span style="color: #007700">-&gt;</span><span style="color: #0000BB">slug</span><span style="color: #007700">;&nbsp;</span><span style="color: #0000BB">?&gt;</span>/<span style="color: #0000BB">&lt;?php&nbsp;</span><span style="color: #007700">echo&nbsp;</span><span style="color: #0000BB">$article_current</span><span style="color: #007700">-&gt;</span><span style="color: #0000BB">seo_url</span><span style="color: #007700">;&nbsp;</span><span style="color: #0000BB">?&gt;</span>.html"/&gt;
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-The Hindu&lt;br /&gt;
&lt;br /&gt;
&lt;em&gt;Research shows that they alter rivers and their fish communities drastically&lt;br /&gt;
&lt;/em&gt;&lt;br /&gt;
It seems to stand to reason that small dams cause less environmental problems than large ones. But the first study on small hydropower projects in India proves that they cause as severe ecological impacts as big dams, including altering fish communities and changing river flows.&lt;br /&gt;
&lt;br /&gt;
Such hydroprojects, which usually generate less than 25 megawatts of power and consist of a wall that obstructs a river&#039;s flow, a large pipe that diverts the collected water to a turbine-driven powerhouse to generate electricity and a canal that releases the water back into the river, are touted to be better than large dams because they submerge fewer regions and barely impact river flow. Such projects receive financial subsidies &amp;mdash; even carbon credits &amp;mdash; for being &amp;lsquo;greener&amp;rsquo;.&lt;br /&gt;
&lt;br /&gt;
To see how green such small dams really are, scientists from organisations including Bengaluru&amp;rsquo;s Foundation for Ecological Research, Advocacy and Learning (FERAL) compared almost 50 kilometres of three river tributaries &amp;mdash; over one undammed and two dammed stretches &amp;mdash; of the Netravathi river in the Western Ghats of Karnataka.&lt;br /&gt;
&lt;br /&gt;
They studied three zones in detail: above the dam (upstream), in the area between the dam&amp;rsquo;s wall and the powerhouse, sometimes completely devoid of water (&amp;lsquo;de-watered&amp;rsquo;) and below the powerhouse (downstream). Here, they studied differences in water depth and width, which signify how much habitat is available to the river&#039;s denizens, and habitat quality through factors including dissolved oxygen content and water temperatures.&lt;br /&gt;
&lt;br /&gt;
Their results show that changes in water flow in the dammed sections reduced the stream&amp;rsquo;s depth and width; water in these stretches was also warmer and had lower dissolved oxygen levels. These changes were most evident in the &amp;lsquo;de-watered&amp;rsquo; zones and worsened in the dry seasons.&lt;br /&gt;
&lt;br /&gt;
Please &lt;a href=&quot;http://www.thehindu.com/sci-tech/science/even-small-dams-have-severe-impact-on-river-ecology/article24122743.ece&quot;&gt;click here&lt;/a&gt; to read more. &lt;br /&gt;
&lt;/div&gt;&#039;,
		&#039;credit_writer&#039; =&gt; &#039;The Hindu, 9 June, 2018, http://www.thehindu.com/sci-tech/science/even-small-dams-have-severe-impact-on-river-ecology/article24122743.ece&#039;,
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Research shows that they alter rivers and their fish communities drastically

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-The Hindu&lt;br /&gt;
&lt;br /&gt;
&lt;em&gt;Research shows that they alter rivers and their fish communities drastically&lt;br /&gt;
&lt;/em&gt;&lt;br /&gt;
It seems to stand to reason that small dams cause less environmental problems than large ones. But the first study on small hydropower projects in India proves that they cause as severe ecological impacts as big dams, including altering fish communities and changing river flows.&lt;br /&gt;
&lt;br /&gt;
Such hydroprojects, which usually generate less than 25 megawatts of power and consist of a wall that obstructs a river&#039;s flow, a large pipe that diverts the collected water to a turbine-driven powerhouse to generate electricity and a canal that releases the water back into the river, are touted to be better than large dams because they submerge fewer regions and barely impact river flow. Such projects receive financial subsidies &amp;mdash; even carbon credits &amp;mdash; for being &amp;lsquo;greener&amp;rsquo;.&lt;br /&gt;
&lt;br /&gt;
To see how green such small dams really are, scientists from organisations including Bengaluru&amp;rsquo;s Foundation for Ecological Research, Advocacy and Learning (FERAL) compared almost 50 kilometres of three river tributaries &amp;mdash; over one undammed and two dammed stretches &amp;mdash; of the Netravathi river in the Western Ghats of Karnataka.&lt;br /&gt;
&lt;br /&gt;
They studied three zones in detail: above the dam (upstream), in the area between the dam&amp;rsquo;s wall and the powerhouse, sometimes completely devoid of water (&amp;lsquo;de-watered&amp;rsquo;) and below the powerhouse (downstream). Here, they studied differences in water depth and width, which signify how much habitat is available to the river&#039;s denizens, and habitat quality through factors including dissolved oxygen content and water temperatures.&lt;br /&gt;
&lt;br /&gt;
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&lt;br /&gt;
Please &lt;a href=&quot;http://www.thehindu.com/sci-tech/science/even-small-dams-have-severe-impact-on-river-ecology/article24122743.ece&quot;&gt;click here&lt;/a&gt; to read more. &lt;br /&gt;
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-The Hindu

Research shows that they alter rivers and their fish communities drastically

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-The Hindu

Research shows that they alter rivers and their fish communities drastically

It seems to stand to reason that small dams cause less environmental problems than large ones. But the first study on small hydropower projects in India proves that they..."/>
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                <div align="justify">-The Hindu<br /><br /><em>Research shows that they alter rivers and their fish communities drastically<br /></em><br />It seems to stand to reason that small dams cause less environmental problems than large ones. But the first study on small hydropower projects in India proves that they cause as severe ecological impacts as big dams, including altering fish communities and changing river flows.<br /><br />Such hydroprojects, which usually generate less than 25 megawatts of power and consist of a wall that obstructs a river's flow, a large pipe that diverts the collected water to a turbine-driven powerhouse to generate electricity and a canal that releases the water back into the river, are touted to be better than large dams because they submerge fewer regions and barely impact river flow. Such projects receive financial subsidies &mdash; even carbon credits &mdash; for being &lsquo;greener&rsquo;.<br /><br />To see how green such small dams really are, scientists from organisations including Bengaluru&rsquo;s Foundation for Ecological Research, Advocacy and Learning (FERAL) compared almost 50 kilometres of three river tributaries &mdash; over one undammed and two dammed stretches &mdash; of the Netravathi river in the Western Ghats of Karnataka.<br /><br />They studied three zones in detail: above the dam (upstream), in the area between the dam&rsquo;s wall and the powerhouse, sometimes completely devoid of water (&lsquo;de-watered&rsquo;) and below the powerhouse (downstream). Here, they studied differences in water depth and width, which signify how much habitat is available to the river's denizens, and habitat quality through factors including dissolved oxygen content and water temperatures.<br /><br />Their results show that changes in water flow in the dammed sections reduced the stream&rsquo;s depth and width; water in these stretches was also warmer and had lower dissolved oxygen levels. These changes were most evident in the &lsquo;de-watered&rsquo; zones and worsened in the dry seasons.<br /><br />Please <a href="http://www.thehindu.com/sci-tech/science/even-small-dams-have-severe-impact-on-river-ecology/article24122743.ece" title="http://www.thehindu.com/sci-tech/science/even-small-dams-have-severe-impact-on-river-ecology/article24122743.ece">click here</a> to read more. <br /></div>               </font>
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    <link rel="canonical" href="https://im4change.in/<pre class="cake-error"><a href="javascript:void(0);" onclick="document.getElementById('cakeErr67f5872cba2eb-trace').style.display = (document.getElementById('cakeErr67f5872cba2eb-trace').style.display == 'none' ? '' : 'none');"><b>Notice</b> (8)</a>: Undefined variable: urlPrefix [<b>APP/Template/Layout/printlayout.ctp</b>, line <b>8</b>]<div id="cakeErr67f5872cba2eb-trace" class="cake-stack-trace" style="display: none;"><a href="javascript:void(0);" onclick="document.getElementById('cakeErr67f5872cba2eb-code').style.display = (document.getElementById('cakeErr67f5872cba2eb-code').style.display == 'none' ? '' : 'none')">Code</a> <a href="javascript:void(0);" onclick="document.getElementById('cakeErr67f5872cba2eb-context').style.display = (document.getElementById('cakeErr67f5872cba2eb-context').style.display == 'none' ? '' : 'none')">Context</a><pre id="cakeErr67f5872cba2eb-code" class="cake-code-dump" style="display: none;"><code><span style="color: #000000"><span style="color: #0000BB"></span><span style="color: #007700">&lt;</span><span style="color: #0000BB">head</span><span style="color: #007700">&gt;
</span></span></code>
<span class="code-highlight"><code><span style="color: #000000">&nbsp;&nbsp;&nbsp;&nbsp;&lt;link&nbsp;rel="canonical"&nbsp;href="<span style="color: #0000BB">&lt;?php&nbsp;</span><span style="color: #007700">echo&nbsp;</span><span style="color: #0000BB">Configure</span><span style="color: #007700">::</span><span style="color: #0000BB">read</span><span style="color: #007700">(</span><span style="color: #DD0000">'SITE_URL'</span><span style="color: #007700">);&nbsp;</span><span style="color: #0000BB">?&gt;&lt;?php&nbsp;</span><span style="color: #007700">echo&nbsp;</span><span style="color: #0000BB">$urlPrefix</span><span style="color: #007700">;</span><span style="color: #0000BB">?&gt;&lt;?php&nbsp;</span><span style="color: #007700">echo&nbsp;</span><span style="color: #0000BB">$article_current</span><span style="color: #007700">-&gt;</span><span style="color: #0000BB">category</span><span style="color: #007700">-&gt;</span><span style="color: #0000BB">slug</span><span style="color: #007700">;&nbsp;</span><span style="color: #0000BB">?&gt;</span>/<span style="color: #0000BB">&lt;?php&nbsp;</span><span style="color: #007700">echo&nbsp;</span><span style="color: #0000BB">$article_current</span><span style="color: #007700">-&gt;</span><span style="color: #0000BB">seo_url</span><span style="color: #007700">;&nbsp;</span><span style="color: #0000BB">?&gt;</span>.html"/&gt;
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<code><span style="color: #000000"><span style="color: #0000BB">&nbsp;&nbsp;&nbsp;&nbsp;</span><span style="color: #007700">&lt;</span><span style="color: #0000BB">meta&nbsp;http</span><span style="color: #007700">-</span><span style="color: #0000BB">equiv</span><span style="color: #007700">=</span><span style="color: #DD0000">"Content-Type"&nbsp;</span><span style="color: #0000BB">content</span><span style="color: #007700">=</span><span style="color: #DD0000">"text/html;&nbsp;charset=utf-8"</span><span style="color: #007700">/&gt;
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-The Hindu&lt;br /&gt;
&lt;br /&gt;
&lt;em&gt;Research shows that they alter rivers and their fish communities drastically&lt;br /&gt;
&lt;/em&gt;&lt;br /&gt;
It seems to stand to reason that small dams cause less environmental problems than large ones. But the first study on small hydropower projects in India proves that they cause as severe ecological impacts as big dams, including altering fish communities and changing river flows.&lt;br /&gt;
&lt;br /&gt;
Such hydroprojects, which usually generate less than 25 megawatts of power and consist of a wall that obstructs a river&#039;s flow, a large pipe that diverts the collected water to a turbine-driven powerhouse to generate electricity and a canal that releases the water back into the river, are touted to be better than large dams because they submerge fewer regions and barely impact river flow. Such projects receive financial subsidies &amp;mdash; even carbon credits &amp;mdash; for being &amp;lsquo;greener&amp;rsquo;.&lt;br /&gt;
&lt;br /&gt;
To see how green such small dams really are, scientists from organisations including Bengaluru&amp;rsquo;s Foundation for Ecological Research, Advocacy and Learning (FERAL) compared almost 50 kilometres of three river tributaries &amp;mdash; over one undammed and two dammed stretches &amp;mdash; of the Netravathi river in the Western Ghats of Karnataka.&lt;br /&gt;
&lt;br /&gt;
They studied three zones in detail: above the dam (upstream), in the area between the dam&amp;rsquo;s wall and the powerhouse, sometimes completely devoid of water (&amp;lsquo;de-watered&amp;rsquo;) and below the powerhouse (downstream). Here, they studied differences in water depth and width, which signify how much habitat is available to the river&#039;s denizens, and habitat quality through factors including dissolved oxygen content and water temperatures.&lt;br /&gt;
&lt;br /&gt;
Their results show that changes in water flow in the dammed sections reduced the stream&amp;rsquo;s depth and width; water in these stretches was also warmer and had lower dissolved oxygen levels. These changes were most evident in the &amp;lsquo;de-watered&amp;rsquo; zones and worsened in the dry seasons.&lt;br /&gt;
&lt;br /&gt;
Please &lt;a href=&quot;http://www.thehindu.com/sci-tech/science/even-small-dams-have-severe-impact-on-river-ecology/article24122743.ece&quot;&gt;click here&lt;/a&gt; to read more. &lt;br /&gt;
&lt;/div&gt;&#039;,
		&#039;credit_writer&#039; =&gt; &#039;The Hindu, 9 June, 2018, http://www.thehindu.com/sci-tech/science/even-small-dams-have-severe-impact-on-river-ecology/article24122743.ece&#039;,
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-The Hindu

Research shows that they alter rivers and their fish communities drastically

It seems to stand to reason that small dams cause less environmental problems than large ones. But the first study on small hydropower projects in India proves that they...&#039;,
	&#039;disp&#039; =&gt; &#039;&lt;div align=&quot;justify&quot;&gt;-The Hindu&lt;br /&gt;&lt;br /&gt;&lt;em&gt;Research shows that they alter rivers and their fish communities drastically&lt;br /&gt;&lt;/em&gt;&lt;br /&gt;It seems to stand to reason that small dams cause less environmental problems than large ones. But the first study on small hydropower projects in India proves that they cause as severe ecological impacts as big dams, including altering fish communities and changing river flows.&lt;br /&gt;&lt;br /&gt;Such hydroprojects, which usually generate less than 25 megawatts of power and consist of a wall that obstructs a river&#039;s flow, a large pipe that diverts the collected water to a turbine-driven powerhouse to generate electricity and a canal that releases the water back into the river, are touted to be better than large dams because they submerge fewer regions and barely impact river flow. Such projects receive financial subsidies &amp;mdash; even carbon credits &amp;mdash; for being &amp;lsquo;greener&amp;rsquo;.&lt;br /&gt;&lt;br /&gt;To see how green such small dams really are, scientists from organisations including Bengaluru&amp;rsquo;s Foundation for Ecological Research, Advocacy and Learning (FERAL) compared almost 50 kilometres of three river tributaries &amp;mdash; over one undammed and two dammed stretches &amp;mdash; of the Netravathi river in the Western Ghats of Karnataka.&lt;br /&gt;&lt;br /&gt;They studied three zones in detail: above the dam (upstream), in the area between the dam&amp;rsquo;s wall and the powerhouse, sometimes completely devoid of water (&amp;lsquo;de-watered&amp;rsquo;) and below the powerhouse (downstream). Here, they studied differences in water depth and width, which signify how much habitat is available to the river&#039;s denizens, and habitat quality through factors including dissolved oxygen content and water temperatures.&lt;br /&gt;&lt;br /&gt;Their results show that changes in water flow in the dammed sections reduced the stream&amp;rsquo;s depth and width; water in these stretches was also warmer and had lower dissolved oxygen levels. These changes were most evident in the &amp;lsquo;de-watered&amp;rsquo; zones and worsened in the dry seasons.&lt;br /&gt;&lt;br /&gt;Please &lt;a href=&quot;http://www.thehindu.com/sci-tech/science/even-small-dams-have-severe-impact-on-river-ecology/article24122743.ece&quot; title=&quot;http://www.thehindu.com/sci-tech/science/even-small-dams-have-severe-impact-on-river-ecology/article24122743.ece&quot;&gt;click here&lt;/a&gt; to read more. &lt;br /&gt;&lt;/div&gt;&#039;,
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-The Hindu&lt;br /&gt;
&lt;br /&gt;
&lt;em&gt;Research shows that they alter rivers and their fish communities drastically&lt;br /&gt;
&lt;/em&gt;&lt;br /&gt;
It seems to stand to reason that small dams cause less environmental problems than large ones. But the first study on small hydropower projects in India proves that they cause as severe ecological impacts as big dams, including altering fish communities and changing river flows.&lt;br /&gt;
&lt;br /&gt;
Such hydroprojects, which usually generate less than 25 megawatts of power and consist of a wall that obstructs a river&#039;s flow, a large pipe that diverts the collected water to a turbine-driven powerhouse to generate electricity and a canal that releases the water back into the river, are touted to be better than large dams because they submerge fewer regions and barely impact river flow. Such projects receive financial subsidies &amp;mdash; even carbon credits &amp;mdash; for being &amp;lsquo;greener&amp;rsquo;.&lt;br /&gt;
&lt;br /&gt;
To see how green such small dams really are, scientists from organisations including Bengaluru&amp;rsquo;s Foundation for Ecological Research, Advocacy and Learning (FERAL) compared almost 50 kilometres of three river tributaries &amp;mdash; over one undammed and two dammed stretches &amp;mdash; of the Netravathi river in the Western Ghats of Karnataka.&lt;br /&gt;
&lt;br /&gt;
They studied three zones in detail: above the dam (upstream), in the area between the dam&amp;rsquo;s wall and the powerhouse, sometimes completely devoid of water (&amp;lsquo;de-watered&amp;rsquo;) and below the powerhouse (downstream). Here, they studied differences in water depth and width, which signify how much habitat is available to the river&#039;s denizens, and habitat quality through factors including dissolved oxygen content and water temperatures.&lt;br /&gt;
&lt;br /&gt;
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&lt;br /&gt;
Please &lt;a href=&quot;http://www.thehindu.com/sci-tech/science/even-small-dams-have-severe-impact-on-river-ecology/article24122743.ece&quot;&gt;click here&lt;/a&gt; to read more. &lt;br /&gt;
&lt;/div&gt;&#039;,
	&#039;credit_writer&#039; =&gt; &#039;The Hindu, 9 June, 2018, http://www.thehindu.com/sci-tech/science/even-small-dams-have-severe-impact-on-river-ecology/article24122743.ece&#039;,
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Research shows that they alter rivers and their fish communities drastically

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-The Hindu

Research shows that they alter rivers and their fish communities drastically

It seems to stand to reason that small dams cause less environmental problems than large ones. But the first study on small hydropower projects in India proves that they..."/>
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                <strong>Even small dams have severe impact on river ecology -Aathira Perinchery</strong></h1>
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                <div align="justify">-The Hindu<br /><br /><em>Research shows that they alter rivers and their fish communities drastically<br /></em><br />It seems to stand to reason that small dams cause less environmental problems than large ones. But the first study on small hydropower projects in India proves that they cause as severe ecological impacts as big dams, including altering fish communities and changing river flows.<br /><br />Such hydroprojects, which usually generate less than 25 megawatts of power and consist of a wall that obstructs a river's flow, a large pipe that diverts the collected water to a turbine-driven powerhouse to generate electricity and a canal that releases the water back into the river, are touted to be better than large dams because they submerge fewer regions and barely impact river flow. Such projects receive financial subsidies &mdash; even carbon credits &mdash; for being &lsquo;greener&rsquo;.<br /><br />To see how green such small dams really are, scientists from organisations including Bengaluru&rsquo;s Foundation for Ecological Research, Advocacy and Learning (FERAL) compared almost 50 kilometres of three river tributaries &mdash; over one undammed and two dammed stretches &mdash; of the Netravathi river in the Western Ghats of Karnataka.<br /><br />They studied three zones in detail: above the dam (upstream), in the area between the dam&rsquo;s wall and the powerhouse, sometimes completely devoid of water (&lsquo;de-watered&rsquo;) and below the powerhouse (downstream). Here, they studied differences in water depth and width, which signify how much habitat is available to the river's denizens, and habitat quality through factors including dissolved oxygen content and water temperatures.<br /><br />Their results show that changes in water flow in the dammed sections reduced the stream&rsquo;s depth and width; water in these stretches was also warmer and had lower dissolved oxygen levels. These changes were most evident in the &lsquo;de-watered&rsquo; zones and worsened in the dry seasons.<br /><br />Please <a href="http://www.thehindu.com/sci-tech/science/even-small-dams-have-severe-impact-on-river-ecology/article24122743.ece" title="http://www.thehindu.com/sci-tech/science/even-small-dams-have-severe-impact-on-river-ecology/article24122743.ece">click here</a> to read more. <br /></div>               </font>
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-The Hindu&lt;br /&gt;
&lt;br /&gt;
&lt;em&gt;Research shows that they alter rivers and their fish communities drastically&lt;br /&gt;
&lt;/em&gt;&lt;br /&gt;
It seems to stand to reason that small dams cause less environmental problems than large ones. But the first study on small hydropower projects in India proves that they cause as severe ecological impacts as big dams, including altering fish communities and changing river flows.&lt;br /&gt;
&lt;br /&gt;
Such hydroprojects, which usually generate less than 25 megawatts of power and consist of a wall that obstructs a river&#039;s flow, a large pipe that diverts the collected water to a turbine-driven powerhouse to generate electricity and a canal that releases the water back into the river, are touted to be better than large dams because they submerge fewer regions and barely impact river flow. Such projects receive financial subsidies &amp;mdash; even carbon credits &amp;mdash; for being &amp;lsquo;greener&amp;rsquo;.&lt;br /&gt;
&lt;br /&gt;
To see how green such small dams really are, scientists from organisations including Bengaluru&amp;rsquo;s Foundation for Ecological Research, Advocacy and Learning (FERAL) compared almost 50 kilometres of three river tributaries &amp;mdash; over one undammed and two dammed stretches &amp;mdash; of the Netravathi river in the Western Ghats of Karnataka.&lt;br /&gt;
&lt;br /&gt;
They studied three zones in detail: above the dam (upstream), in the area between the dam&amp;rsquo;s wall and the powerhouse, sometimes completely devoid of water (&amp;lsquo;de-watered&amp;rsquo;) and below the powerhouse (downstream). Here, they studied differences in water depth and width, which signify how much habitat is available to the river&#039;s denizens, and habitat quality through factors including dissolved oxygen content and water temperatures.&lt;br /&gt;
&lt;br /&gt;
Their results show that changes in water flow in the dammed sections reduced the stream&amp;rsquo;s depth and width; water in these stretches was also warmer and had lower dissolved oxygen levels. These changes were most evident in the &amp;lsquo;de-watered&amp;rsquo; zones and worsened in the dry seasons.&lt;br /&gt;
&lt;br /&gt;
Please &lt;a href=&quot;http://www.thehindu.com/sci-tech/science/even-small-dams-have-severe-impact-on-river-ecology/article24122743.ece&quot;&gt;click here&lt;/a&gt; to read more. &lt;br /&gt;
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Research shows that they alter rivers and their fish communities drastically

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&lt;br /&gt;
&lt;em&gt;Research shows that they alter rivers and their fish communities drastically&lt;br /&gt;
&lt;/em&gt;&lt;br /&gt;
It seems to stand to reason that small dams cause less environmental problems than large ones. But the first study on small hydropower projects in India proves that they cause as severe ecological impacts as big dams, including altering fish communities and changing river flows.&lt;br /&gt;
&lt;br /&gt;
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&lt;br /&gt;
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&lt;br /&gt;
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&lt;br /&gt;
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&lt;br /&gt;
Please &lt;a href=&quot;http://www.thehindu.com/sci-tech/science/even-small-dams-have-severe-impact-on-river-ecology/article24122743.ece&quot;&gt;click here&lt;/a&gt; to read more. &lt;br /&gt;
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-The Hindu

Research shows that they alter rivers and their fish communities drastically

It seems to stand to reason that small dams cause less environmental problems than large ones. But the first study on small hydropower projects in India proves that they..."/>
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                <strong>Even small dams have severe impact on river ecology -Aathira Perinchery</strong></h1>
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                <div align="justify">-The Hindu<br /><br /><em>Research shows that they alter rivers and their fish communities drastically<br /></em><br />It seems to stand to reason that small dams cause less environmental problems than large ones. But the first study on small hydropower projects in India proves that they cause as severe ecological impacts as big dams, including altering fish communities and changing river flows.<br /><br />Such hydroprojects, which usually generate less than 25 megawatts of power and consist of a wall that obstructs a river's flow, a large pipe that diverts the collected water to a turbine-driven powerhouse to generate electricity and a canal that releases the water back into the river, are touted to be better than large dams because they submerge fewer regions and barely impact river flow. Such projects receive financial subsidies &mdash; even carbon credits &mdash; for being &lsquo;greener&rsquo;.<br /><br />To see how green such small dams really are, scientists from organisations including Bengaluru&rsquo;s Foundation for Ecological Research, Advocacy and Learning (FERAL) compared almost 50 kilometres of three river tributaries &mdash; over one undammed and two dammed stretches &mdash; of the Netravathi river in the Western Ghats of Karnataka.<br /><br />They studied three zones in detail: above the dam (upstream), in the area between the dam&rsquo;s wall and the powerhouse, sometimes completely devoid of water (&lsquo;de-watered&rsquo;) and below the powerhouse (downstream). Here, they studied differences in water depth and width, which signify how much habitat is available to the river's denizens, and habitat quality through factors including dissolved oxygen content and water temperatures.<br /><br />Their results show that changes in water flow in the dammed sections reduced the stream&rsquo;s depth and width; water in these stretches was also warmer and had lower dissolved oxygen levels. These changes were most evident in the &lsquo;de-watered&rsquo; zones and worsened in the dry seasons.<br /><br />Please <a href="http://www.thehindu.com/sci-tech/science/even-small-dams-have-severe-impact-on-river-ecology/article24122743.ece" title="http://www.thehindu.com/sci-tech/science/even-small-dams-have-severe-impact-on-river-ecology/article24122743.ece">click here</a> to read more. <br /></div>               </font>
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-The Hindu<br />
<br />
<em>Research shows that they alter rivers and their fish communities drastically<br />
</em><br />
It seems to stand to reason that small dams cause less environmental problems than large ones. But the first study on small hydropower projects in India proves that they cause as severe ecological impacts as big dams, including altering fish communities and changing river flows.<br />
<br />
Such hydroprojects, which usually generate less than 25 megawatts of power and consist of a wall that obstructs a river's flow, a large pipe that diverts the collected water to a turbine-driven powerhouse to generate electricity and a canal that releases the water back into the river, are touted to be better than large dams because they submerge fewer regions and barely impact river flow. Such projects receive financial subsidies &mdash; even carbon credits &mdash; for being &lsquo;greener&rsquo;.<br />
<br />
To see how green such small dams really are, scientists from organisations including Bengaluru&rsquo;s Foundation for Ecological Research, Advocacy and Learning (FERAL) compared almost 50 kilometres of three river tributaries &mdash; over one undammed and two dammed stretches &mdash; of the Netravathi river in the Western Ghats of Karnataka.<br />
<br />
They studied three zones in detail: above the dam (upstream), in the area between the dam&rsquo;s wall and the powerhouse, sometimes completely devoid of water (&lsquo;de-watered&rsquo;) and below the powerhouse (downstream). Here, they studied differences in water depth and width, which signify how much habitat is available to the river's denizens, and habitat quality through factors including dissolved oxygen content and water temperatures.<br />
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Please <a href="http://www.thehindu.com/sci-tech/science/even-small-dams-have-severe-impact-on-river-ecology/article24122743.ece">click here</a> to read more. <br />
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Research shows that they alter rivers and their fish communities drastically

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-The Hindu<br />
<br />
<em>Research shows that they alter rivers and their fish communities drastically<br />
</em><br />
It seems to stand to reason that small dams cause less environmental problems than large ones. But the first study on small hydropower projects in India proves that they cause as severe ecological impacts as big dams, including altering fish communities and changing river flows.<br />
<br />
Such hydroprojects, which usually generate less than 25 megawatts of power and consist of a wall that obstructs a river's flow, a large pipe that diverts the collected water to a turbine-driven powerhouse to generate electricity and a canal that releases the water back into the river, are touted to be better than large dams because they submerge fewer regions and barely impact river flow. Such projects receive financial subsidies &mdash; even carbon credits &mdash; for being &lsquo;greener&rsquo;.<br />
<br />
To see how green such small dams really are, scientists from organisations including Bengaluru&rsquo;s Foundation for Ecological Research, Advocacy and Learning (FERAL) compared almost 50 kilometres of three river tributaries &mdash; over one undammed and two dammed stretches &mdash; of the Netravathi river in the Western Ghats of Karnataka.<br />
<br />
They studied three zones in detail: above the dam (upstream), in the area between the dam&rsquo;s wall and the powerhouse, sometimes completely devoid of water (&lsquo;de-watered&rsquo;) and below the powerhouse (downstream). Here, they studied differences in water depth and width, which signify how much habitat is available to the river's denizens, and habitat quality through factors including dissolved oxygen content and water temperatures.<br />
<br />
Their results show that changes in water flow in the dammed sections reduced the stream&rsquo;s depth and width; water in these stretches was also warmer and had lower dissolved oxygen levels. These changes were most evident in the &lsquo;de-watered&rsquo; zones and worsened in the dry seasons.<br />
<br />
Please <a href="http://www.thehindu.com/sci-tech/science/even-small-dams-have-severe-impact-on-river-ecology/article24122743.ece">click here</a> to read more. <br />
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Research shows that they alter rivers and their fish communities drastically

It seems to stand to reason that small dams cause less environmental problems than large ones. But the first study on small hydropower projects in India proves that they...'
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Even small dams have severe impact on river ecology -Aathira Perinchery

-The Hindu Research shows that they alter rivers and their fish communities drastically It seems to stand to reason that small dams cause less environmental problems than large ones. But the first study on small hydropower projects in India proves that they cause as severe ecological impacts as big dams, including altering fish communities and changing river flows. Such hydroprojects, which usually generate less than 25 megawatts of power and consist of a wall that obstructs a river's flow, a large pipe that diverts the collected water to a turbine-driven powerhouse to generate electricity and a canal that releases the water back into the river, are touted to be better than large dams because they submerge fewer regions and barely impact river flow. Such projects receive financial subsidies — even carbon credits — for being ‘greener’. To see how green such small dams really are, scientists from organisations including Bengaluru’s Foundation for Ecological Research, Advocacy and Learning (FERAL) compared almost 50 kilometres of three river tributaries — over one undammed and two dammed stretches — of the Netravathi river in the Western Ghats of Karnataka. They studied three zones in detail: above the dam (upstream), in the area between the dam’s wall and the powerhouse, sometimes completely devoid of water (‘de-watered’) and below the powerhouse (downstream). Here, they studied differences in water depth and width, which signify how much habitat is available to the river's denizens, and habitat quality through factors including dissolved oxygen content and water temperatures. Their results show that changes in water flow in the dammed sections reduced the stream’s depth and width; water in these stretches was also warmer and had lower dissolved oxygen levels. These changes were most evident in the ‘de-watered’ zones and worsened in the dry seasons. Please click here to read more.