A new study by MIT researchers finds that increased usage of wind power is improving air quality in parts of the U.S., however only a third of the health benefits are being seen in disadvantaged communities, reports Alan Mozes for HealthDay. "Going forward," explains Prof. Noelle Selin, "more targeted policies are needed to reduce the disparities at the same time, for example by directly targeting [fossil fuel] sources that influence certain marginalized communities."
Increased usage of wind energy has led to health benefits, but does not affect all communities equally, reports Saul Elbein for The Hill. The researchers found that in order to increase the benefits of wind energy, “the electricity industry would have to spin down the most polluting plants at times of high wind-supply — rather than their most expensive ones,” writes Elbein.
Researchers from MIT and elsewhere have found that brown carbon – released from burning biomass – could have a larger impact on the Earth’s climate than originally thought, write University of British Columbia student Nealan Gerrebos and University of British Columbia Prof. Alan Bertram for The Conversation. “The results show a warming effect on the climate from brown carbon that is twice that of the previous estimate,” write Gerrebos and Bertram.
MIT startup Quaise Energy is developing an energy-based drill to make geothermal power more accessible, reports Catherine Clifford for CNBC. “The solution to drilling is to replace the mechanical grinding process with a pure energy-matter interaction,” says research scientist Paul Woskov. “Sufficient energy intensity will always melt-vaporize rock without need for physical tools.”
MIT spinoff Quaise Energy is transforming a millimeter-wave drilling technique from nuclear fusion experiments to tap geothermal energy, reports Mark Bergen for Bloomberg. “The company’s drill – it is building three prototypes in laboratories – is about 100 feet tall and looks like convential equipment used in the oil and gas industry,” writes Bergen. “Except built into the center of the drill is a gyrotron, an electrical vacuum designed to heat plasma in thermonuclear fusion machines.
MIT and Delta airlines are developing a plan to eliminate persistent contrails, reports Susan Tran for NBC Boston 10. “A possible solution here is to get rid of these clouds flying at different altitudes,” says Tran. “They [researchers] say that up to 90 percent of all contrails could be avoided by flying at different heights.”
Researchers at MIT’s Department of Aeronautics and Astronautics and Delta Air Lines are working together to find new ways to eliminate persistent contrails, the white clouds that trail behind airplanes, using an algorithm that predicts altitudes and locations where contrails are likely to form, reports Omose Ighodaro for Bloomberg. “The joint research group has already completed more than 40 testing flights and has plans for live experiment flights and simulations,” writes Ighodaro.
Researchers from the MIT Energy Initiative have found that “without restrictions on carbon-dioxide emissions, the Northeast will have even higher per-kilowatt emissions from electricity generation in 2050 than it does now,” reports Justin Fox for Bloomberg. Fox writes that the “modeling results are an indication that the Northeast faces unique challenges in decarbonizing.”
Loh Down on Science host Sandra Tsing Loh spotlights Prof. Cathy Wu and graduate student Vindula Jayawardana and their work developing a new method for self-driving vehicles that would help minimize idling at red lights. “In their method, self-driving can be taught to minimize stops at red lights. To make this work, traffic lights and self-driving cars would have sensors. This would let them check in with each other on their surroundings,” says Loh.
Quaise Energy co-founder Carlos Araque BS ’01 MS ’02 speaks with Guy Raz, host of NPR’s How I Built This, about his time on the MIT Electric Vehicle Team, starting his company and the future of geothermal energy. “We would build these cars together, literally from scratch,“ said Araque about the EVT. "Very hands on, a lot of engineering went into that. And it [offered] very early experience with building things that work -- not only work, but work reliantly and consistently.”
Postdoctoral fellow Joshua A. Schwartz and University of Pennsylvania PhD candidate Sabrina B. Arias write for The Washington Post about their research exploring how American cities and towns are taking action to help reduce carbon emissions. “Major urban areas account for about 30 percent of the U.S. carbon footprint,” they write. “This means even relatively narrow efforts focused on those cities could still have a significant impact.”
Jennifer Rumsey MS ’98 has been named the first female CEO of Cummins Inc., a truck engines and power-generation equipment manufacturing company, reports Brooke Sutherland for Bloomberg. “Rumsey’s technical background is exactly what Cummins needs right now as the company pivots from its legacy as a maker of diesel engines and plots its role in the energy transition,” writes Sutherland.
Alumna Jennifer Rumsey SM ’98 will become the first woman to lead Cummins, the largest maker of diesel engines for trucks and heavy-duty vehicles, since its founding in 1919, reports Alan Ohnsman for Forbes. “Rumsey… intends to continue the shift to products that generate far less climate-warming emissions,” writes Ohnsman.
Researchers at MIT have found that due to the ongoing circulation of dust, sea salt, and organic matter produced by vegetation, even eliminating all human-caused pollution would still leave half of the world’s population exposed to particulate levels deemed unsafe by the World Health Organization, writes David Wallace-Wells for The New York Times. “When pollution combines with extreme heat, researchers have found, overall mortality risk can grow by more than 20 percent.”
Research affiliate Jason Prapas founded Fyto, a company dedicated to developing hardware and software to automate and scale the production of aquatic plants, reports Christine Hall for TechCrunch. Prapas says that “Fyto’s technology taps into a farm’s waste streams as inputs to enable farmers to increase productivity and improve nutrient management while reducing production costs, water usage and greenhouse gas emissions, in some operations by over 50%.”