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Scientists are becoming increasingly open to using local knowledge to understand how climate change could affect the world's most vulnerable, and often inaccessible, regions. But how useful are these data to science? Dan Whipple reports.

Under attack from pine beetles that are thriving in a warmer climate, Canada's boreal forests could become a sizeable source of emissions in the coming decade. Brian Hoyle reports.

Why are harlequin frogs disappearing across the American tropics? A resifting of the evidence backs up the conclusion that global warming is a key conspirator in the losses.

Humour can be a great vehicle for sustainable-living messages, but a lack of substance makes for a faltering ride.

Exposed boulders on the harsh terrain of west Antarctica harbour a warning that the region's glaciers could collapse.

Almost one-quarter of carbon dioxide released to the atmosphere is emitted in the production of internationally traded goods and services. Trade therefore represents an unrivalled, and unused, tool for reducing greenhouse gas emissions.

By failing to question the conventional wisdom rigorously, we risk shutting the door to a radical rethink on how to move climate policy forward.

Water supplies are at risk of drying up as the climate warms, but mitigating climate change could mean shifting to water–intensive alternative energy sources. Brian Hoyle reports.