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...

Rich and poor countries have to give ground to get a deal in Copenhagen; then they must focus on setting a carbon price AT A time when they are not short of pressing problems to deal with, the presence of 100-odd world leaders at the two-week meeting that starts in Copenhagen on December 7th to renew the Kyoto protocol on climate change might seem a little self-indulgent. There will be oceans...

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...

Non-governmental organizations are making a difference to the lives of poor and marginalized people in India. Most work in geographically limited areas. They are idealistic and want change, and hope to enter the lives of those they work with. Funding agencies and NGOs are enthused by any sign of change in the long-failed state of Bihar. A virulent and discriminatory caste system that deprives the lower castes even of government-funded...

Without urgent progress which will stimulate funding for renewables, nations could be locked into high-carbon energy and transport technologies for decades, inflating another unsustainable economic bubble, say experts. Achim Steiner, the head of the U.N. environment programme, said: “Far more worrying [than formally ratifying a treaty] is that every month we delay we send a ambiguous signal into the world economy, the markets, investors and R&D.” The markets had not...