The road to Khardung La begins in the Indian town of Leh on the northwestern fringe of the Himalayas. Exhaust-spewing army trucks rattle up the side of dry rock, past Buddhist monasteries clinging to the craggy mountainside and alongside small farms barely scraping fertility from the earth. Khardung La, the highest motorable mountain pass in the world, is more than 18,000 ft. above sea level, the air so thin that...

Today 56 newspapers in 45 countries take the unprecedented step of speaking with one voice through a common editorial. We do so because humanity faces a profound emergency. Unless we combine to take decisive action, climate change will ravage our planet, and with it our prosperity and security. The dangers have been becoming apparent for a generation. Now the facts have started to speak: 11 of the past 14 years...

Manufacturers are using chemical additives to make greener tyres JOHN DUNLOP had a son who complained that his bicycle was bumpy to ride. So he invented the pneumatic tyre in 1888. Various improvements have been made since then. In particular, Pirelli, an Italian tyremaker, introduced steel-belted radial tyres in 1973. These reduced the fuel consumption of cars fitted with them. Now manufacturers are trying to develop tyres that reduce that consumption...

Without crop varieties adapting to extremes of weather, feeding world population will be difficult Shortage of water resources will be one of the greatest problems NEW DELHI: “The threat of climate change and its impact on agriculture is real. We have evidence that by 2025 in some parts of the world including India, parts of Asia and parts of Africa, crop yields will drop from anything between 20 and 40 per cent...

Secretary-General Ban Ki-moon intends to join a 24-hour fast over the weekend on the eve of the World Summit on Food Security in solidarity with the planet’s one billion people who do not have enough to eat, his spokesperson said today. Mr. Ban will deliver a speech at the opening of the three-day summit in Rome on Monday in which he is expected to say that it is unacceptable that...