Emissions

Sublime Systems, an MIT startup, is developing new technology to fully decarbonize the cement manufacturing process, reports Adele Peters for Fast Company. “Instead of using heat to break down rocks for cement, the startup uses chemistry to dissolve them, and then blends the components back together into what it calls ‘Sublime Cement,’” explains Peters. “The process can replace limestone with other minerals, including rocks found at high volumes in industrial waste, so it’s also possible to eliminate the emissions from limestone.”

A study by MIT researchers has uncovered an, “intricate relationship between jobs and the nation’s energy transition,” reports Kaleigh Harrison for Environment + Energy Leader. The study, “presents an unprecedented county-level examination of the U.S., identifying regions most intertwined with fossil fuels – ranging from intensive drilling and mining operations to heavy manufacturing sectors,” writes Harrison. “The findings underscore not only the expected impact on traditional energy bastions but also highlight the broader, often overlooked, implications for areas heavily invested in manufacturing.”

Fast Company reporter Kristin Toussaint spotlights how MIT researchers have developed a new map detailing how the shift to clean energy could impact jobs around the country. The researchers found that workers could be most impacted in areas that drill for oil and gas, as well as “regions with a high concentration of manufacturing, agriculture, and construction—all industries that rely heavily on coal, oil, and gas.” 

Prof. John Sterman speaks with Boston Globe reporter Alexa Coultoff about his experience retrofitting his home to achieve a fully net-zero house. “Sterman said he asked himself what actions would have the biggest payoff and went from there,” writes Coultoff. “For example, his home’s original windows from the 1920s were in rough shape, so he decided to tighten the building’s envelope, resulting in wider windowsills, where, added bonus, he can now display a robust plant collection.”

Prof. Emeritus Henry Jacoby writes for The Hill about the potential impact of the 2024 presidential election on climate change. “Laissez-faire, ‘do nothing’ climate policy is a recipe for present and future climate and societal harm,” Jacoby writes. “The climate system will not magically self-repair if we continue to pump greenhouse gases into the atmosphere.”

Fast Company reporter Adele Peters spotlights Boston Metal – an MIT startup that uses electrolysis to heat iron ore and create liquid steel without releasing carbon emissions. “If the process runs on renewable energy, the steel is zero-emissions,” explains Peters. “The same technique can be used to extract other valuable metals from mining waste.”

Priyadarshi Panda PhD '11 – founder of International Battery Company, a startup developing lithium-ion battery cells for electric vehicles – is working to “bridge the demand-supply gap in the growing EV market in India,” reports Jagmeet Singh for TechCrunch. “There is a lot of demand in the Indian market, which is satisfied through imports right now,” says Panda. “No cells are being manufactured in India. So, we want to participate in that journey in India.”

Writing for The Hill, Principal Research Scientist Randolph Kirchain and Research Scientist Hessam Azarijafari address how the condition of the nation’s road system impacts transportation emissions. “Investing in a higher-performance road system is a lever within state control that will improve the efficiency and carbon emissions of all vehicles, regardless of how each is powered,” write Kirchain and Azarijafari. “Smoother, stiffer roads allow cars to travel along it more efficiently. Every time a car tire traverses a bump, crack, or pothole, energy is wasted.”

Prof. Jessika Trancik writes for Newsweek about the importance of government policy in supporting the transition to electric vehicles. “Policy is needed to make EVs widely accessible to people while the technology and markets continue to mature,” writes Trancik, “and to ensure the process moves quickly enough to help slow the build-up of greenhouse gases in the atmosphere.”

Prof. Jessika Trancik speaks with Associated Press reporter Alexa St. John to discuss electric vehicle emissions and ownership costs. Trancik notes, “buyers should consider total cost of ownership, which for an EV is generally less than that of a gas-powered counterpart due to savings on maintenance and fuel.”

Robert Stoner, interim director of the MIT Energy Initiative, speaks with Boston Public Radio hosts Margery Eagan and Jim Braude to discuss the climate crisis and some solutions being developed at MIT. "You have to be [optimistic]," says Stoner. "I do feel there are technological pathways that we can go down and get there. Solar and wind and storage get us an awful long way. We have to make these things cheaper, and there are an awful lot of people at MIT and at other great universities, and many companies, hammering away at those problems."

David Zipper, a senior fellow at the MIT Mobility Initiative, speaks with Kai Ryssdal of Marketplace about how cars in the U.S. are getting heavier and larger, and the environmental and safety costs associated with larger vehicles. “For decades, people who buy enormous, very heavy cars have been creating societal costs that they aren’t paying for. That’s what’s called a market failure,” said Zipper. “So if you want the market for automobiles to succeed, we need to make sure that when people are shopping for their next car, they are considering the societal costs of their purchase.”

MIT researchers are working to uncover new ways to avoid contrails and minimize their impact on global warming, reports Nicolas Rivero for The Washington Post. “Whether [the contrail impact is] exactly 20 percent or 30 percent or 50 percent, I don’t think anybody knows that answer, really,” says research scientist Florian Allroggen “But it also doesn’t really matter. It’s a big contributor and we need to worry about it.”

David Zipper, a senior fellow at the MIT Mobility Initiative, writes for Slate about the “continually expanding size of the typical American automobile” and the deadly consequences of car bloat. “In 1977, SUVs and trucks together represented 23 percent of American new car sales; today they comprise more than 80 percent,” writes Zipper. “Meanwhile, the models themselves keep getting larger. These four-wheeled behemoths started as niche vehicles, meant to allow certain groups of people to accomplish specific tasks. Today they have become a fixture of everyday American life. They are also linked to myriad societal ills, from crash deaths to climate change to social inequality. Bigger cars make each of those problems harder to solve.”

Fast Company reporter Adele Peters spotlights how researchers at MIT have combined cement with carbon black to make concrete that can store energy as one of the climate tech innovations that provide hope “that it’s still possible to avoid the worst impacts of climate change.” With this new technology, “the foundation of your future house could eventually store solar power from your roof,” explains Peters.