New research finds the United States’ energy mix is rapidly decarbonizing largely due to economics, as coal-fired generation keeps retiring in favor of cheaper clean energy additions, but U.S. greenhouse gas (GHG) emissions still rose 2.5% in 2018.

Although that may seem counterintuitive, economic growth and extreme weather increased energy demand, despite power sector decarbonization. To help avoid dire consequences of global warming, the U.S. will need to decouple energy productivity and economic growth to accelerate emissions reductions .

Positive steps are underway, from increasing clean energy deployment…