Over the last two years, the United States has scaled back Obama-era climate change policies, withdrawing from the Paris Agreement and rolling back climate-related regulations. But it has not pursued alternative ways to address the risk climate change poses to our environment and our economy.

With Democrats back in control of the House and the days of Republicans’ climate change denial seemingly coming to an end, organized camps have weighed in recently with starkly different ideas for reducing carbon emissions and moving to a clean-energy economy.