US President Barack Obama mocked Republicans who reject global warming as a “liberal plot,” as he pumped up a crowd of environmental activists in Washington.
Obama compared climate change deniers to patients who ignore the science that shows they have a disease.
The US president is turning increasingly sardonic about lawmakers, not exclusively Republicans, who thwarted White House efforts during his first term to introduce a cap-and-trade system to regulate carbon emissions.
Some of Obama’s foes either doubt the science behind climate change or fear that doing something about it will involve draconian measures that will hike energy prices or harm the still fragile US economy.
Obama recently unveiled a plan to use his executive powers to cut carbon emissions from US power plants by 30 percent from 2005 levels by 2030.
The plan would let US states choose their own approaches as long as each enforces restrictions on carbon emissions.