How do I ... reduce my carbon emissions?

In order to avoid climate calamity, global temperatures must not rise by more than 2C. Here's how you can do your bit

On Monday, one of the biggest meetings in the world will begin in Paris. COP21, or the 21st conference of the parties, is the UN's most significant summit on climate change since the 2009 meeting in Copenhagen, bringing together political leaders and delegates from just about every country in the world. Their mission is to negotiate a new deal on cutting greenhouse gas emissions after 2020 - a deal on which the earth's future may depend.

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