More unprecedented heat waves also could be in store, like those experienced this month in the Pacific Northwest, where hundreds of people are believed to have died from the extreme temperatures, and Russia’s Siberia, where nearly 200 separate forest fires have choked the region in smoke that has since drifted to Alaska.
“All of this was predicted in climate science decades ago,” said John P. Holdren, a professor of environmental policy at Harvard’s John F. Kennedy School of Government. “We only had to wait for the actual emergence in the last 15 to 20 years. Everything we worried about is happening, and it’s all happening at the high end of projections, even faster than the previous most pessimistic estimates.”
Scientists and environmental activists are in a race to persuade the world to reduce greenhouse gas emissions by enough to prevent global temperatures from rising more than 2.7 degrees Fahrenheit above preindustrial levels. Failure to do so could result in massive disruptions such as famine and widespread coastal flooding. Time is short: Global temperatures have already risen on average by 2.16 degrees Fahrenheit since 1880.
Last week, the European Union proposed sweeping legislation aimed at cutting emissions by more than half of 1990 levels by 2030 through the phasing out of gasoline and diesel cars and the imposition of tariffs on imports from polluting countries. The plan poses formidable challenges for the 27-country bloc, including trade tensions and a political backlash from those who deny climate change is happening.
Climate change is making the world more prone to floods, like those in China and Europe, and to heat waves and wildfires, like those in the U.S. and Russia.https://t.co/1jlzS6rFjD
— Los Angeles Times (@latimes) July 21, 2021