Global greenhouse gas emissions on course to reach record high of over 40bn tonnes in 2014, study in Nature Geoscience says Children born today will see the world committed to dangerous and irreversible levels of climate change by their young adulthood at current rates, as the world poured a record amount of greenhouse gases into the atmosphere this year. Annual carbon dioxide emissions showed a strong rise of 2.5% on 2013 levels, putting the total emitted this year on track for 40bn tonnes.

That means the global ?carbon budget?, calculated as the total governments can afford to emit without pushing temperatures higher than 2C above pre-industrial levels, is likely to be used up within just one generation, or in thirty years from now. Scientists think climate change is likely to have catastrophic and irreversible effects, including rising sea levels, polar melting, droughts, floods and increasingly extreme weather, if temperatures rise more than 2C. They have calculated that this threshold is likely to be breached if global emissions top 1,200 billion tonnes, giving a ?carbon budget? to stick to in order to avoid dangerous warming.

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