How many people will turn out the lights on Saturday to show support for combating climate change in “Earth Hour”?

A women’s group is criticising the United Nations for gender bias after picking only men to a 19-strong panel to come up with ideas on financing the fight against climate change

Methane is leaking from beneath Arctic seas north of Siberia — but it is new (very alarming) or going on for ages (less worrying)?

The Dutch government, the European Commission, the U.N. panel of climate scientists and the journal Nature all have been confused about how much of the Netherlands is below sea level. The U.N. panel has come in for most criticism.

Experts say in a new report that global warming is accelerating — but sceptics point to “Climategate” to question findings.

A GPS marker floated hundreds of km on an iceberg off Antarctica after the breakup of the Wilkins Ice shelf

Some politicians are starting to mention Copenhagen climate talks and stalled Doha trade talks in the same breath…a worrying sign of feared deadlock

One travel company is ditching an offer of letting people pay to offset their greenhouse gas emissions, saying that’s the same as selling “medieval pardons”

Will the award of the Nobel Peace Prize to U.S. President Barack Obama (due to be handed over in Oslo on Dec. 10) put pressure on him to visit U.N. talks on a new climate treaty (Dec 7-18)?

Will the guardians of the Nobel Prize make another green award in 2009 to help talks on a new climate treaty? Or is it too soon?

A new U.N. treaty to combat climate change is to be agreed in the Danish capital, Copenhagen. But how do you pronounce it?

the discovery of chemical contaminants in domestic well water near U.S. natural gas-drilling rigs raises more questions about the safety of a method of gas extraction called hydraulic fracturing

The world’s farmland has far more trees than expected, challenging conventional wisdom that agriculture and forests don’t mix.

How much ice is needed to raise world sea levels by 1 millimetre? Answer — 390 square kms

U.S. greenhouse gases rose most sharply since 1990 under President Bill Clinton: is that a problem for Barack Obama?