Among the various sectors of the U.S. economy, electricity generation (power plants) accounts for the largest share of historical emissions—31 percent of total greenhouse gas emissions since 1990. Transportation has historically been the second-largest sector, accounting for 26 percent of emissions since 1990 Transportation has been the largest sector since 2017.
Today, anicebergthe size of Delaware broke away from the Antarctic Peninsula. Let that sink in for a moment. More than a trillion (1,000,000,000,000) metric tons of ice—one of the largesticebergsin history—just broke free from Antarctica.
The year 2020 will be remembered for many things, not the least of which were a series of devastating fires around the globe thatbear the fingerprints of climate change.