A group of 25 state governors that make up the U.S. Climate Alliance and the Biden administration announced a pledge Thursday to quadruple the number of heat pumps in U.S. homes by 2030, from 4.7 million to 20 million. Heat pumps use little electricity, yet are able to heat and cool buildings. Since they often replace oil or gas furnaces that add greenhouse gases to the air, they can meaningfully address climate change. Read more: https://www.king5.com/article/news/nation-world/efficient-heating-ac-units-initiative-by-2030/507-f1d08d4a-1d94-4cbd-a951-6f8c586fe92a