Methane: Emissions increase and it's not good news

Of course, carbon dioxide plays a key role in global warming, but among all the greenhouse gases, methane deserves special attention because of its larger global warming potential (28 times higher than carbon dioxide on a ...

Beavers gnawing away at the Arctic permafrost

Alaska's beavers are profiting from climate change, and spreading rapidly. In just a few years' time, they have not only expanded into many tundra regions where they'd never been seen before; they're also building more and ...

New study estimates the carbon footprints of 13,000 cities

Cologne, Manchester, and Montreal rarely make the list of the world's megacities. Yet they are all in the top 100 worldwide in terms of their carbon footprint. A new study says it is these cities, as much as the Jakartas ...

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