President Trump’s executive order eliminating President Obama’s standards for power plants guts the main U.S. measure to reduce harmful carbon emissions, and in doing so reveals the emptiness of the Paris climate treaty.

The science is clear-cut: Climate change is real and mostly caused by humanity. Obama committed America to major carbon cuts.

According to the International Energy Agency, the U.S. promised to cut more energy-related CO2 emissions than any country in the world from 2013 to 2025, under the Paris climate treaty.

The problem is that this promise never had much ground in reality.

The primary measure America offered to achieve the promised cuts was the Clean Power Plan, which required the U.S. power sector to reduce CO2 emissions.