No this is not a Babylon Bee piece. This is as a real science article. But there’s an agenda here. Read on…
In a paradox, cleaner air is now adding to global warming
Excerpted from the article:
“Using an array of satellite observations, researchers have found that the climatic influence of global air pollution has dropped by up to 30% from 2000 levels. Although this is welcome news for public health—airborne fine particles, or aerosols, are believed to kill several million people per year—it is bad news for global warming. The cleaner air has effectively boosted the total warming from carbon dioxide emitted over the same time by anywhere from 15% to 50%, estimates Johannes Quaas, a climate scientist at Leipzig University and lead author of the study. And as air pollution continues to be curbed, he says, “There is a lot more of this to come.”
“I believe their conclusions are correct,” says James Hansen, a retired NASA climate scientist who first called attention to the “Faustian bargain” of fossil fuel pollution in 1990. He says it’s impressive scientific detective work because no satellite could directly measure global aerosols over this whole period. “It’s like deducing the properties of unobserved dark matter by looking at its gravitational effects.” Hansen expects a flurry of follow-up work, as researchers seek to quantify the boost to warming.”
But wait for the punchline:
“…Whatever the exact contribution, it is sure to grow as air quality continues to improve around the world. The answer isn’t to keep polluting, says Jan Cermak, a remote-sensing scientist at the Karlsruhe Institute of Technology. “Air pollution kills people. We need clean air. There is no question about that.” Instead, efforts to reduce greenhouse gases need to be redoubled, he says.
But with Earth having warmed by some 1.2°C since preindustrial times, Hansen thinks there’s little hope of cutting emissions fast enough to meet the 1.5°C target he and other scientists have called for. And so the solution, he says, could come back to aerosols, this time ones spread deliberately through solar geoengineering—the controversial idea of lofting sulfate particles into the stratosphere and creating a global, reflective haze. “It will be necessary to take temporary corrective measures,” he says, “almost surely including temporary purposeful use of aerosols to avoid catastrophic implications.”
Full article: In a paradox, cleaner air is now adding to global warming | Science | AAAS