Emissions

Prof. Caitlin Mueller has been named Innovator of the Year by Architectural Record for her work advancing a “vision for building design and construction that unites these disciplines with computation to create structure that are sustainable, high performing, and delightful,” reports Architectural Record. “Her group develops computational design and digital fabrication methods that integrate efficiency, performance, material circularity, and architectural expression,” Architectural Record notes. “This work spans robotic assembly of optimized trusses, fabrication of low-cost earthen and concrete systems, and algorithmic strategies for reusing salvaged wood and reassembled concrete parts.” 

Researchers at MIT have developed a new self-assembling battery material that could help combat growing concerns about EV battery waste, reports Grace Snelling for Fast Company. The new method “makes it much easier to separate [battery] component parts, leaving them ready for recycling,” writes Snelling. 

Inspired by a scene in Harry Potter, researchers at MIT have developed a new self-assembling battery material that could one day serve as an “easy-to-recycle alternative for manufacturing EV batteries,” reports Gayoung Lee for Gizmodo. Notably, the process doesn’t require the harsh chemical and thermal conditions that make EV battery recycling so difficult, offering promising opportunities for recycling the batteries at scale.”

CNBC reporter Diana Olick spotlights Quaise Energy, an MIT spinoff developing geothermal energy technology. “We intend to build the first in the world superhot, or super critical geothermal power plant, to show exactly that 10X output that you get by going hotter,” says Carlos Araque '01 MS '02. 

Leah Ellis, a former MIT postdoc and co-founder of MIT startup Sublime Systems, speaks with Nature reporter Emma Ulker about the company’s mission to reduce carbon emissions from cement production, how her work with co-founder Prof. Yet-Ming Chiang helped inspire her entrepreneurial journey, and her philosophy as a science entrepreneur. “At Sublime, we are tackling a hard problem — pun intended — because the cement industry is one of the most difficult to approach, owing to its sheer scale,” explains Ellis. “The motivation for our work is that change in cement-making technology has a significant impact — it’s really only once in a millennium that you get to rethink such a foundational and monumental building material.”

Researchers at MIT have developed an “AI-powered tool that scans scientific literature and over 1 million rock samples to identify materials that can partially replace cement in concrete,” reports Samanatha Hindman for Yahoo! News. The new system could “change how we build cities forever,” says Hindman. “The system sorts materials based on their physical and chemical properties, narrowing them down by how well they hold concrete together when mixed with water (hydraulic reactivity) and how they strengthen it over time (pozzolanicity).” 

Noman Bashir, a fellow with the MIT Climate and Sustainability Consortium and a postdoc at CSAIL, speaks with Wired reporter Molly Taft about AI and energy consumption. Bashir explains that how quickly a model answers a question has a big impact on its energy use. “The goal is to provide all of this inference the quickest way possible so that you don’t leave their platform,” Bashir says. “If ChatGPT suddenly starts giving you a response after five minutes, you will go to some other tool that is giving you an immediate response.”

Vijay Gadepally, a senior scientist at MIT Lincoln Lab, discusses users can help conserve energy while using AI tools, reports Nicolás Rivero for The Washington Post. Gadepally notes that users can save energy by asking the AI to be concise when you don’t need long answers, as models use more energy for each word they process. “People often mistake these things as having some sort of sentience,” says Gadepally. “You don’t need to say ‘please’ and ‘thank you.’ It’s okay. They don’t mind.”

Architect reporter Blaine Brownell spotlights Prof. Caitlin Mueller’s work repurposing “discarded tree forks from urban forestry projects [and] repurposing the nodes as structural joints in hybrid reclaimed-engineered wood constructions.” Mueller and her team have “developed computer programs to catalog 3D scans of the tree forks as well as determine the appropriate cuts for their intended structural applications,” explains Brownell. “An algorithm matches prepared tree forks to three-dimensional intersections in the intended structural framework, streamlining the design process.” 

Prof. Yet-Ming Chiang and his colleagues have developed a sodium-air fuel cell that “packs three to four times more energy per pound than common lithium-ion batteries,” reports Aaron Pressman for The Boston Globe, which could serve as “a potentially groundbreaking clean power source for airplanes.” Pressman adds that: “Ultimately, a sodium-air fuel cell could power a regional jet carrying 50 to 100 passengers on flights as long as 300 miles.” 

A study by Prof. Noelle Selin has found that climate change will impact our ability to curb smoke and smog pollutants, reports Vivian La for WBUR. The researchers “used computer models to predict how air pollution will develop in the Eastern United States over the next few decades,” explains La. Selin underscored the importance of policies that reduce air pollution noting that: “what we’re doing to the atmosphere has impacts and it’s important not to roll these back.” 

Boston Business Journal reporter Eli Chavez spotlights Sublime Systems, an MIT startup “focused on low-carbon cement production.” “Sublime’s mission is to have a swift and massive impact measured in the amount of cement we produce and sell,” says CEO Leah Ellis, a former MIT postdoc. “We are super-focused on increasing our cement production.” 

A study by MIT researchers finds “using scrubbers to treat exhaust from heavy fuel oil may offer environmental performance on par with, and in some areas superior to, burning low-sulfur fuels in maritime shipping,” reports Hassan Ahmed for Engineeringness. “The research provides data that could help policymakers and industry leaders better assess the comparative costs and benefits of available fuel options,” explains Ahmed. 

Graduate student Will Parker joins Dana Taylor of the USA Today podcast The Excerpt to discuss his research on the impact of climate change on satellites. “We're seeing a cooling effect in the upper atmosphere where most of our satellites are operating, and because of that cooling effect, we're seeing that the entire atmosphere is contracting, so it's retreating away from low Earth orbit where we rely on that atmosphere for drag on our satellites,” explains Parker. “The effect of that retreat, that shrinking of the atmosphere, is that it's not doing as good a job at cleaning out low Earth orbit, and again, we rely on that cleaning force because we have no other way to remove most of this debris.” 

Researchers at MIT have discovered how “greenhouse gases are impacting Earth’s upper atmosphere and, in turn, the objects orbiting within it,” reports Grace Snelling for Fast Company. “If we don’t take action to be more responsible for operating our satellites, the impact is that there are going to be entire regions of low Earth orbit that could become uninhabitable for a satellite,” says graduate student William Parker.