A new study by MIT scientists finds that smoke emitted into the atmosphere from Australian wildfires in 2019 and 2020 resulted in depletion of the ozone layer, reports Donna Lu for The Guardian. The findings suggest “rising fire intensity and frequency due to the climate crisis may slow the recovery of the ozone layer.”
Prof. Sara Seager speaks with Tom Metcalfe of NBC News about the Venus Life Finder missions, which will carry a robotic space payload partially funded by MIT alumni to Venus to search for signs of life in the planet's atmosphere. “Space is becoming cheaper in general, and there is more access to space than ever before,” says Seager.
Researchers from MIT and Princeton University have found that flooding events will become much more common by the end of the century, especially in New England, reports Evan Bush for NBC. “The researchers used computer modeling to stimulate thousands of ‘synthetic’ hurricanes toward the end of this century and in a scenario where greenhouse gas emissions are very high,” writes Bush.
Researchers from MIT, Tripura University, and Vaisala Inc. concluded that the decline of aerosols in the atmosphere led to a reduction in lightning activity during the Covid-19 lockdown period, reports Alaa Elassar for CNN. “As countries around the world imposed quarantines, lockdown and curfews aimed at limiting the spread of Covid-19, air pollution levels fell drastically, thereby reducing the amount of aerosols released into the air,” writes Elassar.
Inside Science reporter Will Sullivan writes that a new study co-authored by MIT researchers finds that during Covid-19 lockdowns in the spring of 2020 there was a reduction in human activities that release aerosols into the atmosphere, resulting in diminished lightning activity.
Axios reporter Miriam Kramer notes that scientists from MIT and other institutions are planning a mission to probe the atmosphere of Venus for any potential signs of life. The probe “will come equipped with a laser designed to help it figure out what kind of chemistry is happening in droplets in Venus' atmosphere during a three-minute flight through the planet's clouds,” writes Kramer.
Reuters reporter Andrea Januta writes that using computer models Prof. Kerry Emanuel has found that hurricanes in the North Atlantic have been growing in intensity and frequency as global temperatures have increasing. Emanuel “turned to computer simulations to recreate climate conditions for the last 150 years. Using three different climate models, he then scattered hurricane “seeds,” or conditions that could produce a storm, throughout the models to see how many seeds developed into storms,” writes Januta.
A new study by Prof. Kerry Emanuel examining the history of hurricanes finds that North Atlantic hurricanes are increasing in frequency and intensity, write Matthew Cappucci and Jason Samenow for The Washington Post. Emanuel “employed a novel approach to evaluate past storm activity,” they write. “Rather than relying on historical observations, which may have gaps, he performed climate modeling to reconstruct a continuous record of hurricane activity over the past 150 years from which to gauge trends.”
Prof. Sara Seager speaks with Vox podcast host Brian Resnick about the potential of for life on Venus. “So, for Venus, far above the surface, at 50 kilometers or so above the surface, the temperature is actually just right for life,” says Seager.
Andy Rivkin ’91 speaks with Boston Globe reporter Andrew Brinker about his work on NASA’s DART mission, which is aimed at testing whether a rocket could be used to help steer an asteroid away from Earth. “I’ve always been interested in stars and space and planets since I was a kid,” said Rivkin. “At MIT, I was in the earth, atmospheric, and planetary sciences department, and that’s when I started looking at asteroids. And then as a graduate student, I studied asteroids. And then I ended up doing my dissertation on them. It sort of all started [at MIT].”
HuffPost reporter Mary Papenfuss writes that a team of archeologists and scientists, including Research Scientist Jahandar Ramezani, have uncovered evidence of social behaviors in dinosaurs. “The bones were segregated by age, with eggs in a common nesting ground,” writes Papenfuss. “Juveniles likely were left in ‘schools’ while adults foraged.”
Research scientist Jahandar Ramezani speaks with Scientific American reporter Christopher Intagliata about his new study that provides evidence early dinosaurs exhibited herding behavior. “This is a critical time in the evolution of dinosaurs. This is pretty early on,” says Ramezani. “So the idea is: this type of behavior, this social behavior, may have actually contributed to the evolutionary success of dinosaurs.”
Writing for The Guardian, Prof. Daniel Rothman examines the history of Earth’s mass extinctions and how Earth seems to experience “a cascade of disruptions when stressed beyond a tipping point." Rothman writes that: “If we do not significantly cut back CO2 emissions, then we risk passing the threshold before the end of the present century.” He adds, “let us not contribute to the risk of a sixth extinction. Efforts to limit CO2 emissions now may pay dividends further into the future than we can imagine.”
Prof. Kerry Emanuel speaks with AP reporter Angela Charlton about nuclear power and climate change. “People are beginning to understand the consequences of not going nuclear,” says Emanuel. Amid a “growing awareness of the rise of climate risks around the world, people are beginning to say, ‘that’s a bit more frightening than nuclear power plants.’”
Forbes contributor Bruce Dorminey writes that a new study by MIT scientists finds that the surfaces of carbonaceous asteroids may be much more rocky than previously thought. “This news is important for planetary science because we need to sample asteroids to answer fundamental questions such as how the solar system formed and how life came to be on Earth, says postdoctoral fellow Saverio Cambioni.