Commentary in 2008

Policymakers must start to view mass migration as a form of adaptation so that the global response to climate-induced migration is one of facilitation rather than neglect.

Despite some recovery of the Arctic summer sea ice this year, the signs suggest the transition to a seasonally ice-free Arctic Ocean is underway.

The notion that we need nuclear power to address climate change does not reflect the realities of the marketplace or rapid new developments in energy technology.

Climate researchers must begin to bridge disciplinary divides — and institutions must begin to reward them for it.

Both national and global climate policy must redirect its focus from setting a price on carbon to promoting the rapid deployment of clean technologies.

Both emissions reduction and adaptation will need to be much stronger than currently planned if dangerous global impacts of climate change are to be avoided. June's UN talks in Bonn and July's G8 summit present opportunities for world leaders to face this challenge.

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.

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.

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