Sustainability

The Financial Times’ Anjana Ahuja spotlights research led by Prof. Dennis Whyte on the economics of fusion energy. “Economic Q, the metric devised by Whyte and others and which must exceed one to represent net economic gain, compares the capital gained over a fusion energy plant’s lifetime to that expended,” writes Ahuja. “Factors reflect the extreme engineering involved and include construction costs, component durability and the efficiency of converting fusion power into a commodity.” 

Assil Halimi PhD ‘25 speaks to TechCrunch’s Tim De Chant about his company Apollo Atomics, which is shrinking the steam generator component of a reactor to streamline nuclear power. “We don’t want to be incremental in nuclear and just improve a small thing,” says Halimi. “Our target is to beat natural gas.” 

In an opinion piece for Fast Company, Hala Hanna, Executive Director of MIT Solve, outlines a blueprint for solving the world’s hardest problems in the next decade. “The last decade rewarded whoever could invent the best solution. The next one will belong to whoever can build the conditions for good solutions to survive, spread, and rewire the systems around them,” writes Hanna.  

Prof. Danielle Wood speaks to the Scientific American’s Tom Metcalfe about how the current models of space travel, that have created trash and debris in Earth’s atmosphere and orbit, are unsustainable. “Sustainability in space means that we are able to leave to future generations something like the natural state of the Earth, the moon and the solar system,” says Wood. 

MIT researchers have developed a framework to determine what is needed to make fusion energy commercially viable, writes World Nuclear News (WNN). “The parameters in the framework describe engineering features of the fusion power plant such as power density, the efficiency of converting fusion power into an economic product, and the durability of components used in the energy conversion, in addition to costing and market parameters that assess the expenses and returns from invested capital,” explains WNN.  

Prof. Dennis Whyte and Prof. Andrew Lo have built a framework to mitigate the economic challenges of fusion power, writes Interesting Engineering’s Ameya Paleja. “While there are multiple approaches to building a nuclear fusion facility, Whyte and colleagues believe that at the end of the day, the facility should be in a position to generate more money that has gone in to building and operating it, otherwise it won’t last for long,” writes Paleja. 

MIT spinoff Found Industries’ new Cambridge headquarters and metals processing development center is highlighted by Boston Business Journal's Lucia Maffei. “We are developing electrochemical processes to recover gallium and, in time, indium, and germanium, and antimony and other critical metals directly from existing industrial streams,” says Peter Godart PhD ‘21, Found Industries CEO.  

MIT researchers have designed a recyclable elastic yarn, made from polyethylene, that mimics the stretchiness of spandex-polyester and spandex-nylon blends, the Anthropocene team writes. “[T]he researchers spun a spool of yarn, melted it, and re-spun it into new yarn several times. Even after 10 cycles, the yarn was as strong and flexible as conventional blended fibers,” explains Anthropocene.  

MIT researchers have developed a low temperature process to extract battery-grade lithium from spodumene, the most common type of mineral containing lithium, using a reusable liquid reagent, writes Electronic Design’s Lee Goldberg. “The new process uses a liquid reagent to dissolve the rock into the useful forms of its constituent parts — not just battery-ready lithium salts, but also smelter-grade alumina and cement-ready silica,” writes Goldberg. “After the minerals are extracted, the solvent and reagent can be recovered and used again so that waste levels approach zero.”  

Alumnus Vikas Enti ‘20, founder of Reframe Systems, speaks to Boston 25 about his company’s work aimed at lowering the time and costs of home building with their new system that they used to robotically fabricate a residential building in Somerville. “We went from starting foundation work to handing keys over to our customer in about 180 days,” says Enti. “It would typically take about 18 months to build a structure like this in cities like Somerville—it's almost three times faster. Our units also cost 20% lower than traditional construction costs.” 

MIT researchers have created a new building design model that could enable engineers to construct buildings and bridges that use less materials, writes Tech Briefs’ Andrew Corselli. “Traditional topology optimization essentially starts with a blank space and tries to figure out at each point in this blank space: ‘Should there be material,’ ‘should there not be material’ from an efficiency standpoint,” says Prof. Josephine Carstensen. “Our approach populates the space with a bunch of lines that are instead candidates for ‘should there be material’ or ‘should there not be material.’ By using this line approach, we have the opportunity to have more control.” 

A study by MIT researchers has found evidence that the first signs of ozone depletion appeared in 1957 in the upper tropical stratosphere, driven by carbon tetrachloride, an industrial chemical introduced in the 1930s and widely used as a dry-cleaning and degreasing agent, writes Gizmodo reporter Ellyn Lapointe. “This finding underscores the importance of long-term atmospheric monitoring so that we can fully understand how it responds to chemical pollution,” Lapointe notes.

Manufacturing Dive reporter Cole Rosengren notes that a year after its launch, the MIT Initiative for New Manufacturing (INM) is “gaining traction toward its goal of helping modernize U.S. industrial systems.” Speaking at a Boston Tech Week event, Prof. John Hart, co-director of the INM, shared that at MIT, “we believe that there are important things we can do to help grow domestic manufacturing productivity, impart more sustainability in supply chains and industries, and also contribute to the creation of high-quality manufacturing jobs.”

NPR reporter Jeff Brady spotlights a study by Prof. Jessika Trancik and Marco Miotti PhD ’20  that found “across most of the U.S., electric vehicles are cost-competitive with their gas counterparts. And it found that in most locations, EVs also reduce emissions between 40% and 60%.”