We can limit global warming to 2℃ – here’s how

The Intergovernmental Panel on Climate Change has just issued its 5th  Assessment Report. This represents the international scientific consensus on the state of climate change, its human causes, and what we need to do to keep global warming within the hopefully safe limit of 2℃ above the pre-industrial level of greenhouse gases in the atmosphere – before we starting running our economies on fossil fuels.
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