Researchers at MIT and elsewhere have discovered that the ocean’s hue has changed significantly over the last 20 years, reports Laura Baisas for Popular Science. “A shift in ocean color is an indication that ecosystems within the surface may also be changing,” writes Baisas. “While the team can’t point to exactly how marine ecosystems are changing to reflect the shift, they are quite sure that human-induced climate change is likely behind it.”
A new study led by a team including researchers at MIT has found that more than half of the world’s ocean has changed color in the last 20 years, reports Coco Liu for Bloomberg. “The color shift could be caused by changes in plankton communities that are critical to the marine food chain,” writes Liu. “And biodiversity isn’t the only thing at stake: The shift could also affect how much carbon dioxide the ocean takes up, since different types of plankton have different abilities to absorb it."
Financial Times reporter Simon Mundy and Kaori Yoshida spotlight Gradiant, an MIT startup that has developed new methods of handling industrial wastewater. “Gradiant promises customers that its technology will allow them to purify and reuse larger amounts of water, reducing the amount they need to source externally,” write Mundy and Yoshia.
Boston Globe reporter Aaron Pressman highlights Gradiant, an MIT startup that has developed a water purification system based on natural evaporation and rainfall cycles to clean wastewater at factories and manufacturing facilities.
Gradiant, an MIT startup, is using water technology to “help companies reduce water usage and clean up wastewater for reuse,” reports Simon Jessop for Reuters.
MIT researchers have developed a low-cost air quality sensor that can be 3-D printed using open-source instructions and used by people around the world, reports Kristin Toussaint for Fast Company. “The reason we started this project was because we wanted to democratize environmental data,” explains research scientist Simone Mora. “We’re not just opening the data we’ve collected so far, but we hope to funnel a huge development in terms of sensors deployed in the streets, and in turn [make] the data collected available to everyone.”
MIT scientists have uncovered evidence that wildfire smoke particles can lead to chemical reactions in the atmosphere that erode the ozone layer, reports Margaret Osborne for Smithsonian Magazine. “From a scientific point of view, it’s very exciting to see this brand new effect,” says Solomon. “From a planetary point of view… it would be just tragic to have mankind screw up solving the ozone hole by deciding that we’re going to [allow] a lot more of these fires if we don’t mitigate climate change.”
Researchers from MIT have found that wildfire smoke can activate chlorine-containing molecules that destroy the ozone layer, writes Donna Lu for The Guardian. “The question in my mind is: is the man-made chlorine going to get … diluted and destroyed out of the atmosphere faster than global climate change is going to increase the frequency and intensity of this kind of fire?” says Prof. Susan Solomon. “I think it’s going to be a race.”
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?”
Researchers from the MIT Center for Real Estate Research and elsewhere have found that high carbon dioxide levels can contribute to students achieving lower scores on standardized tests, reports Brandon Kochkodin for Forbes. “Poor air quality is a widespread issue that seems to affect the bulk of the student population,” says Prof. Juan Palacios.
MIT researchers have found that air pollution can impact the performance of chess players, reports Sharon Udasin for The Hill. "With just a modest rise in pollution levels, the researchers saw that a player’s probability of making an error increased by 2.1 percentage points,” Udasin writes.
Prof. Juan Palacios speaks with The Guardian reporter Helena Horton about how air pollution can lead to more mistakes in chess players. “We find that when individuals are exposed to higher levels of air pollution, they make more mistakes, and they make larger mistakes,” says Palacios.
MIT researchers have found that in the U.S., “fires started by people account for a majority of premature deaths related to inhalation of tiny smoke particles,” writes Cara Murez for U.S. News & World Report. “Fires not only threaten human lives, infrastructure and ecosystems, but they are also a major cause for concern in terms of air quality,” says Therese Carter PhD ’22.