The Paris Agreement laid out a framework for countries to adopt clean energy and phase out fossil fuels. Each country submitted a climate-action plan laying out how it would achieve these goals.

The US’s plan, which the Obama administration submitted in March 2015, set the goal of reducing greenhouse gas emissions by 26% to 28% by 2025. The baseline level this reduction is measured against is 2005, when the US emitted 6,132 million metric tons of carbon dioxide. Under Obama, the US started to reduce its emissions, both because of the rise in affordable renewable energy and the abundance of natural gas due to fracking. One hundred ninety-five countries agreed to the Paris accord, and only Syria and Nicaragua didn’t sign it.

The US is the world’s second-largest carbon emitter, after China. Together, the countries accounted for 45% of the world’s carbon dioxide emissions in 2014.  Please see my story here  for a deep dive.