Mitigation policy cards

Mitigation policy cards

July 6, 2015

A series of  policy cards providing up-to-date evidence for policy questions relating to climate change mitigation.

Policy card 1: What is the scale and challenge of the energy system transition required to meet long-term climate goals?
Achieving emissions consistent with a 50% chance of remaining below 2°C by 2100 will require large changes in the energy system over the 21st century, including increased use of renewables and significant retirement of fossil fuel generation capacity. Delaying global coordinated mitigation action towards the 2°C goal beyond 2020 would substantially increase the costs of mitigation and require very rapid subsequent rates of decarbonisation.

Policy card 2: What contribution can mitigation of non-CO2 greenhouse gases make towards achieving long-term temperature goals?
Greenhouse gases (GHGs) other than CO2 made up about 28% of total GHG emissions in 2010. There are a number of relatively inexpensive options to reduce emissions of these gases. Setting a “carbon-equivalent” price on non-CO2 GHGs could reduce their emissions by over two-thirds relative to a reference scenario, and significantly reduce the total cost of meeting long-term temperature goals.



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