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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.

With new climate and energy legislation, the EU aims to stride boldly ahead of its previous climate policies while protecting its economy from less-green competitors. Anna Barnett reports.

Its proponents say that underground coal gasification combined with carbon capture could allow the continued use of coal — without unacceptable emissions. Kurt Kleiner looks at whether the technology is likely to live up to expectations.

Climate change must be reported more carefully to help distinguish convergent agreement from legitimately contentious issues.