Diplomats hopeful of a global agreement after more than two decades of failed attempts
Researchers say we need to cut our red meat consumption down to two portions a week to save the planet
Deforestation and climate change drive extinction rates to 1,000 times their normal level
Researcher claims his paper was rejected because it might help climate sceptics advance their case
Catastrophic climate change can only be averted if we adopt nuclear, wind and solar power in a big way, says UN
UN panel publishes most comprehensive climate change study yet, but will it prove controversial?
Rowan Williams blames climate change on the West on eve of publication of latest UN climate report
Haiyan may have been the world's most powerful storm, but was it a natural disaster - or manmade?
UN report says world getting warmer and humans to blame, but UK will cool if Gulf Stream slows
Twister was a category four storm that struck the suburb of Moore with just five minutes' warning