Emissions

MIT researchers have discovered that increased greenhouse gas emissions in the Earth’s upper atmosphere can “potentially cause catastrophic satellite collision in low-Earth orbit,” reports Bruce Dorminey for Forbes. “When the thermosphere contracts, the decreasing density reduces atmospheric drag — a force that pulls old satellites and other debris down to altitudes where they will encounter air molecules and burn up,” Dorminey explains. “Less drag therefore means extended lifetimes for space junk, which will litter sought-after regions for decades and increase the potential for collisions in orbit.”  

Associated Press reporter Seth Borenstein writes that MIT scientists have found that climate change could “reduce the available space for satellites in low Earth orbit by anywhere from one-third to 82% by the end of the century, depending on how much carbon pollution is spewed.” Graduate student William Parker explains: “We rely on the atmosphere to clean up our debris. There’s no other way to remove debris. It’s trash. It’s garbage. And there are millions of pieces of it.”

A new study by MIT researchers finds that “climate change could threaten the future use of satellites and significantly reduce the number of spacecraft that can safety orbit Earth,” reports Julia Jacobo for ABC News. The researchers found “global warming is causing space debris to linger above the planet for longer periods of time, leaving less space for functioning satellites and posing a growing problem for the long-term use of Earth’s orbital space,” Jacobo explains. “Reducing greenhouse gas emissions doesn't just help us on Earth, it also has the potential to protect us from long-term sustainability issues in space,” explains graduate student William Parker. 

A study by MIT scientists has found that increased greenhouse gas emissions will shrink the Earth’s upper atmosphere causing a “drop in the satellite-carrying capacity of low Earth orbit,” repots Passant Rabie for Gizmodo. “Without an atmosphere, most space debris would remain in orbit indefinitely,” Parker said. “As the atmosphere thins, debris lingers longer, increasing the risk to active satellites. With the growing consequences of space debris, we can accommodate fewer debris-generating events.”

Researchers at MIT have found that climate change could raise the risk of satellite collisions, reports Justine Calma for The Verge. “We’ve really reached the end of that era of ‘space is big,’ and I think we should stop saying that,” says graduate student, William Parker. “People don’t realize that the space sustainability issue is really an issue that impacts them directly.”

New Yorker reporter Brent Crane spotlights Quaise Energy, an MIT geothermal energy startup founded by Carlos Araque BS '01, MS '02. Crane explains that central to Quaise’s system is the gyrotron, a tubular device that “works like a very, very powerful microwave, emitting ‘millimeter waves’ that would vaporize your vegetables; they can generate temperatures of a hundred million degrees Celsius.” Crane notes that: “About a decade ago, Paul Woskov, an MIT research engineer, showed that the technology could be used for ‘energy drilling’ without a physical bit. Quaise’s scientists propose that the heat of a gyrotron could stabilize tunnel walls by vitrifying them into glass.” 

David Zipper, a senior fellow at the Mobility Initiative, speaks with WBUR Here & Now co-host Scott Tong about “car bloat,” the trend of increasingly large SUVs and trucks on the road. “I personally believe that car bloat is a major public health issue, it's a major policy issue, but I'll be candid, I don't think the average American does right now,” explains Zipper. “We need people to understand it and appreciate it. And in my view, that's going to need to happen at the grassroots level before we can expect really anybody in Washington to address this problem in the way that it deserves to be addressed.”

Joe Higgins, MIT’s vice president for campus services and stewardship, speaks with Boston Globe reporter Sabrina Shankman about the Consortium for Climate Solutions, a new effort led by MIT, Harvard and Mass General Brigham to enable the development of large-scale renewable energy projects. “The science is telling us that we need to triple the amount of renewable energy on the power grids by 2030 and it’s not happening fast enough,” says Higgins. “It really came down to, we need new models … and how do we come together to do that with much greater impact, at a much greater speed?”

The Consortium for Climate Solutions, which is led by MIT, Harvard and Mass General Brigham, is enabling the development of a solar farm in Texas and a wind farm in North Dakota, which should generate enough renewable energy annually to power 130,000 homes, reports Martha Bebinger for WBUR. The effort is intended to “cut annual carbon dioxide emissions by 950,000 tons, about the equivalent of the carbon that trees covering 600,000 acres of forest would absorb in a year.”

David Zipper, a senior fellow at the Mobility Initative, writes for Fast Company about the future of the electric vehicle market. “With EVs comprising less than one in ten new car purchases, most Americans are still forming their impressions and figuring out how to evaluate them,” writes Zipper. “It remains to be seen whether they’ll ultimately care most about range, engine power, or something else entirely.” 

Writing for Bloomberg, David Zipper, senior fellow at the MIT Mobility Initiative, highlights the impact of the robotaxi industry on public transportation. “Transit-robotaxi synergy is an enticing message at a time when public transportation agencies face a dire funding shortage, and it could especially resonate among left-leaning residents in places like the Bay Area who value buses and trains even if they seldom use them,” writes Zipper. “But caveat emptor: The robotaxi industry’s embrace of public transportation conceals a wolf in sheep’s clothing.” 

Prof. Jessika Trancik speaks with BBC reporter Isabelle Gerretsen about the future of electric vehicles and how shifting to EVs can help reduce carbon emissions. Trancik and her research lab developed an online tool, dubbed Carboncounter, that can analyze the climate impact of different vehicles. “A shift to an electric vehicle is one of the single most impactful decisions that someone can make if they want to reduce their own emissions," explains Trancik. 

David Zipper, a senior fellow at the MIT Mobility Initiative, speaks with ABC News reporter Michael Dobuski about the rising popularity of small “micromobility” vehicles. “In the last fifteen years or so, you’ve seen a lot of cities in the US, and frankly in other parts of the world too, invest a lot of money and resources in creating safe spaces for people who want to use a scooter, or a bicycle, or any of these other versions of micromobility that we’re talking about,” explains Zipper. 

Los Angeles Times reporter Rosanna Xia spotlights Prof. Susan Solomon’s new book, “Solvable: How We Healed the Earth, and How We Can Do It Again,” as a hopeful remedy to climate anxiety. “An atmospheric chemist at MIT whose research was key to healing the giant gaping hole in our ozone layer, Solomon gives us much-needed inspiration — and some tangible ways forward,” explains Xia. 

Graduate student Zoe Fisher speaks with Yusuf Khan of The Wall Street Journal’s  about what inspired her to pursue a career in nuclear engineering, noting that being able to fight climate change firsthand is one of the key reasons she wanted to make a career in nuclear.. “It’s a cool thing to study that is going to have a lot of broader impacts,” Fisher says.