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...

The government appears to have taken a final call going into the climate change summit at Copenhagen that India’s traditional stand, that developing countries are not obliged to cut emissions, is unlikely to change. Yet there remains considerable wiggle room available to India’s negotiators. The temptation, however, to keep that wiggle room as large as possible, at the cost of atmospherics going in, must be avoided. The government for a...

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...

India on Sunday said there was no question of taking any binding carbon emission cuts, indicating the coordinated approach major emerging economies including Beijing and New Delhi are likely to adopt at the climate change summit in Copenhagen, which is just a week away. “There cannot be any emission cuts... that is what we have said and also something the developed countries have said... they [industrialised nations] don’t expect countries like...