-IANS Kolkata: Climate change is causing toxic metals trapped in the sediment beds of the Hooghly estuary in the Indian Sunderbans to leach out into the water system due to changes in ocean chemistry, say scientists, warning of potential human health hazards. They predict that after about 30 years, increasing ocean acidification - another dark side of spiked atmospheric levels of carbon dioxide - could in fact unlock the entire stock of...

-The Times of India NEW DELHI: The sustained anti-firecracker campaign, clampdown on Chinese crackers and a 10pm deadline do not seem to have made the city breathe any easier this Diwali than during the last one. There was no significant improvement in air quality compared to last year. The range of average PM 2.5 (fine, respirable particles) may have reduced from 201-533 microgram per cubic metre last Diwali to 145-500 microgram per...

-The Hindustan Times Gurdaspur (Punjab): Punjab, known for its sprawling agricultural fields, is equally famous for burning of paddy and wheat straw by farmers after the harvesting season. The smoke released from burning of paddy straw is extremely bad for health. "Each year, the agriculture department spreads the same message highlighting the ill-effects of straw burning in the fields, but farmers rarely pay heed to it. Burning of straw causes severe harm...

-The Hindustan Times Before climate change became the most important global environmental concern, the depletion of the ozone layer dominated the discourse. This depletion was being caused by the use of CFCs (chlorofluorocarbons) primarily in refrigerators and of HCFCs (hydrochlorofluorocarbons) largely in air-conditioners. To deal with this threat, following the Vienna Convention in 1985, the Montreal Protocol came into existence in 1987 with a Multilateral Fund following in 1991. This has...

-Deccan Chronicle We are faced with two crises on a planetary scale - climate change and species extinction. Our current modes of production and consumption, starting with the Industrial Revolution and aggravated by the advent of industrial agriculture, have contributed to both. If no action is taken to reduce greenhouse gases, we could experience a catastrophic 4°C increase in temperatures by the end of the century. But climate change is not just...