This weekend, the world’s major economies will convene in Delhi for the G20 summit. On the table will be the common goal of limiting global temperature rise as climate chaos becomes ever more evident.
When we talk about limiting climate change, we’re really talking about the global carbon budget set by the Intergovernmental Panel on Climate Change. Basically, we have a two-thirds chance of holding global heating to 1.5℃ if we keep future emissions under 400 gigatonnes of carbon dioxide. At current emission rates, we’ve got just under five years left before we blow through that limit.
