Axios reporter Jacob Knutson highlights a new study by MIT researchers that finds the smoke released by major wildfires likely reactive chlorine-containing molecules in the atmosphere, delaying the recovery of the hole in the ozone layer. The researchers developed a model that found smoke released by Australian wildfires “chemically depleted between 3% to 5% of the total ozone column in the Southern Hemisphere mid-latitudes in June and July of 2020.”
New Scientist reporter James Dinneen writes that a new study by MIT researchers finds the smoke from Australian wildfires “may have enabled hydrochloric acid to dissolve at higher temperatures, generating more of the reactive chlorine molecules that destroy ozone.” Research scientist Kane Stone explains that “satellite observations showed chemistry that has never been seen before.”
MIT scientists have found that the Australian wildfires in 2019 and 2020 unleashed remnants of chlorine-containing molecules in the stratosphere, expanding the ozone hole and suggesting that more frequent wildfires could threaten the ozone hole’s recovery, reports Dyani Lewis for Nature. “It’s like a race,” says Prof. Susan Solomon. “Does the chlorine decay out of the stratosphere fast enough in the next, say, 40–50 years that the likely increase in intense and frequent wildfires doesn’t end up prolonging the ozone hole?”
Prof. Kerry Emanuel and First Street Foundation have found that based on warming climate conditions and patterns, future storms will increase in intensity and travel farther north up the East Coast, reports Leslie Kaufman and Eric Roston for Bloomberg.
Prof. Kerry Emanuel speaks with CNN reporters Ella Nilsen and Renée Rigdon about future hurricane trends. “The bottom line is the models that are being used by the existing [catastrophe] modeling industry are based strictly on historical statistics,” says Emanuel. “The historical record isn’t very long, and it isn’t very good when you get back to before 1970.”
Visiting scientist Judah Cohen speaks with Boston.com reporter Eli Curwin about how a combination of more accurate data collection, precise weather models, and accessible forecast predictions make it unlikely that Massachusetts residents would be surprised again by a storm like the infamous Blizzard of ‘78. “The satellites, the ships, the weather stations, weather balloons used to integrate and assimilate all that data are much better than they used to be,” says Cohen.
Forbes reporter Jeff McMahon spotlights visiting scientist Judah Cohen for his research examining the connection between Arctic snow cover and sea ice to cold air intrusions in the United States during the month of February. “December has certainly been warming if you look at the U.S.,” sayscCohen. But “February, going back to 1979—so quite a few years now—we're actually seeing in the center of the U.S. a very distinctive cooling trend.”
Prof. Kerry Emanuel discusses the impact climate change has on hurricanes, reports Robinson Meyer for The Atlantic. “First of all, you can have more intense hurricanes in a warmer climate. That finding goes back well over 30 years now,” says Emanuel. “For that reason we expect to see more of the highest-category storms—the Cat 3s, Cat 4s, Cat 5s, more of the Ian-style storms.”
Prof. Kerry Emanuel speaks with Newsweek reporter Pandora Dewan about Hurricane Ian and its correlation to climate change, reports Pandora Dewan for Newsweek. “What worries people in my profession is the confluence of two trends," says Emanuel. "One is demographic, one is nature. The number of people exposed to hurricanes has tripled since 1970 [as] people are moving in droves to hurricane-prone regions. Then the climate is changing, and that is demonstrably increasing the incidence of high-end storms like Ian."
Associate Group Leader at the Lincoln Laboratory, William (Bill) Blackwell is the principal investigator for NASA’s TROPICS mission, which is preparing to launch small satellites into space to help better track the development of tropical storms, reports Justine Calma for The Verge. “With more frequent observations from these satellites, scientists hope to better understand how tropical storms grow and intensify,” writes Calma.
A study conducted by Prof. Susan Solomon and her colleagues has found that unlike CFCs, smoke destroys the ozone in a more roundabout way, creating concerns due to the impact of the Australian bushfires of 2019-2020, reports Krystal Vasquez for EOS. “Because of the sheer scale of the event [the Australian bushfires] massive amounts of smoke penetrated the normally pristine upper stratosphere,” writes Vasquez.
Prof. Susan Solomon speaks with Wall Street Journal reporter Nidhi Subbaraman about her research and another recent study that provides evidence wildfire smoke poses a threat to the ozone layer. “It’s fair to say that, at least for a few months, these wildfires canceled out the last decade of all the efforts that we put in over the Montreal Protocol,” says Solomon. “I think there’s every reason to believe this is going to happen more often, and it’s going to act to slow down the recovery of the ozone depletion.”
Smoke from Australian wildfires in 2019 and 2020 appears to have contributed to the breakdown of the ozone layer, according to a new study by MIT scientists, reports Sharon Udasin for The Hill. “The new study establishes the first direct link between wildfire smoke and ozone depletion,” writes Udasin.
Daily Beast reporter Miriam Fauzia writes that a new study by MIT scientists finds that smoke particles from wildfires are slowing the recovery of the ozone layer.
BBC News correspondent Helen Briggs writes that MIT scientists have found that increasing wildfires may slow the recovery of the ozone layer. "All the hard work that the world went to to reduce chlorofluorocarbons (ozone-depleting chemicals once used in aerosol sprays) is not paying off as well in the areas that experience extreme wildfires," explains Prof. Susan Solomon. "The best hope would be that we reduce global warming gases also and stop increasing the wildfires, but that's obviously more difficult."