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The levels of greenhouse gases are higher than the worst case scenario outlined by climate experts just four years ago

Research shows that UK carbon emissions - a significant part of greenhouse gases - have fallen significantly. But how much further do they need to fall to meet future targets?

Monitoring stations in the Arctic detect record levels of carbon dioxide, higher than ever above 'safe' 350ppm mark The world's air has reached what scientists call a troubling new milestone for carbon dioxide, the main global warming pollutant. Monitoring stations across the Arctic this spring are measuring more than 400 parts per million of the heat-trapping gas in the atmosphere.

Nasa researchers measured surprising levels of the potent greenhouse gas methane coming from cracks in Arctic sea ice and areas of partial sea ice cover

Melting Arctic permafrost could put even more methane - a potent greenhouse gas - into the atmosphere than previously thought, with worrying implications for the pace of global warming. Many ice sheets that sit like caps over rock crevices trap natural seeps of methane; when they melt, the gas can quickly be released into the atmosphere in "burps".

Nearly half of the UK's top companies do not have targets on greenhouse gas emissions, despite years of legislation and campaigning on the issue, a study by the Carbon Trust has found.

As the world's oceans warm, their massive stores of dissolved carbon dioxide may be quick to bubble back out into the atmosphere and amplify the greenhouse effect, according to a new study.

UK climate secretary to tell defence experts that conflict caused by climate change risks reversing the progress of civilisation Climate change will lead to an increased threat of wars, violence and military action against the UK, and risks reversing the progress of civilisation, the energy and climate secretary Chris Huhne will say on Thursday, in his strongest warning yet that the lack of progress on greenhouse gas emission cuts would damage the UK's national interests.

The British government has dealt a body blow to hopes of mitigating global warming by capturing greenhouse gases. But is it fatal? After months of speculation, the British government has set back the development of one of the most promising weapons in the war on climate change.