In a few weeks, governments from nearly 200 nations will convene in Paris for the United Nations Climate Change Conference (COP21). Expectations are exceedingly high, as world leaders hope to finalize a legally binding international climate agreement limiting global warming to below 2 degrees Celsius. Brookings experts have compiled a collection of short policy briefs entitled, “COP21 at Paris: The issues, the actors, and the road ahead on climate change,” on some of the key issues in climate action.