Cities

Prof. Yet-Ming Chiang co-founded Sublime Systems, a company that has developed a new method for producing cement that is powered by electrochemistry instead of fossil fuel-powered heat, reports Catherine Clifford for CNBC. “I believe climate change has pushed all of us into an extremely fertile, creative period that will be looked back on as a true renaissance,” says Chiang. “After all, we're trying to re-invent the technological tools of the industrial revolution. There's no shortage of great problems to work on!  And time is short.”

Writing for The Boston Globe, Prof. Carlo Ratti emphasizes that in the wake of the Covid-19 pandemic “urban areas need to fundamentally reweave their fabric to thrive in the era of flexible work: That means ending homogeneous zoning, promoting mixed-use developments, converting some offices into housing, and giving more space to arts and culture. We should recognize that the fundamental attraction of urban areas is the pleasure they provide to their residents — and that the affordability of housing needs to be seriously tackled.”

Sublime Systems, an MIT startup, is on a mission to manufacture emissions-free cement, writes David Abel for The Boston Globe. “If we’re successful, this could be a way of making cement for millennia to come,” said Leah Ellis, chief executive of Sublime Systems. “What we’ve found is that we can bring tools from our technical training to these problems, and use them in new and creative ways,” said Prof. Yet-Ming Chiang, co-founder of Sublime Systems. “I believe it’s a very fertile time for this kind of reinvention.”

Writing for The New York Times, Prof. Carlo Ratti and Harvard Prof. Edward Glaeser emphasize that in order to, “create a city vibrant enough to compete with the convenience of the internet, we need to end the era of single-use zoning and create mixed-use, mixed-income neighborhoods that bring libraries, offices, movie theaters, grocery stores, schools, parks, restaurants and bars closer together. We must reconfigure the city into an experience worth leaving the house for.”

Researchers from MIT have found that, as a result of the Covid-19 pandemic, people are less likely to explore economically different parts of their home cities, reports Immanual John Milton for Bloomberg. “Fewer people are visiting attractions like museums, restaurants or parks that are outside their immediate mobility radius, and they’re spending less time among residents at different socioeconomic levels,” writes Milton.

Prof. Carlo Ratti speaks with CNN reporter Paula Newton about the future of cities and the potential impact of vacant office spaces. “We need to meet in a physical space,” says Ratti. “Maybe not in the old office tower, but the physical space is very important. It’s the way we sustain and enrich our social networks.”   

MIT researchers have found that interactions between people from different economic backgrounds have dropped significantly since the start of the Covid-19 pandemic, reports David Scharfenberg for The Boston Globe. Scharfenberg notes the “the phenomenon could hurt low-income people in direct ways – they’ll lose connections to better-off people – and indirect ways.”

Adjunct Professor Emeritus Mel King, a political activist whose 1983 mayoral campaign helped ease racial tensions in Boston, has died at 94, reports Richard Sandomir for The New York Times. King’s work included “teaching in the urban studies and planning department of the Massachusetts Institute of Technology from 1970 to 1996,” writes Sandomir. “There, he started a Community Fellows Program for leaders nationwide.”

Researchers at MIT have co-authored a paper in which they used honeybees to study the microbiome of cities. Since bees “tend to forage within a mile radius of their hives in urban areas, there’s valuable information about a city or even a neighborhood in the honey they produce, on their bodies and in the debris that lies at the bottom of hives,” writes Linda Poon for Bloomberg.

MIT researchers have developed a low-cost air quality sensor that can be 3-D printed using open-source instructions and used by people around the world, reports Kristin Toussaint for Fast Company. “The reason we started this project was because we wanted to democratize environmental data,” explains research scientist Simone Mora. “We’re not just opening the data we’ve collected so far, but we hope to funnel a huge development in terms of sensors deployed in the streets, and in turn [make] the data collected available to everyone.”

Writing for The Boston Globe, Prof. Carlo Ratti and Robert Muggah of the SecDev Group explore the pushback against 15-minute cities and how the concept behind creating more accessible neighborhoods could “facilitate the meaningful and sustained in-person connections that the internet cannot.” They note that "the concept could be the solution to bridging our divides. By creating more open, integrated, and healthy neighborhoods, it is possible to restore the in-person connections that are an antidote to polarization.”

Postdoctoral fellow Timur Abbiasov speaks with Guardian reporter Henry Grabar about his research examining the relationship in neighborhoods between local errands and the geography of amenities. Abbiasov and his colleagues found that “the more commerce, parks and services in a neighborhood, the more people travelled locally, whether in the country’s most walkable cities or its least.”

Bloomberg reporter Akshat Rathi spotlights Sublime Systems, an MIT startup developing new technology to produce low-carbon cement. “Sublime’s solution involves splitting the cement-making process into two steps,” explains Rathi. “The first step is to make calcium—the key element in limestone—in a form that’s ready to chemically react with silicon—the key element in sand. Sublime reduces energy use and carbon emissions in this step by avoiding limestone and using electricity, rather than coal-fired heat.”

Writing for the Daily News, Prof. Carlo Ratti and Harvard Prof. Edward Glaeser highlight a new report by the “New” New York Panel aimed at reimagining New York City. “This is the moment to embrace the ‘New’ New York Panel’s three-pronged approach of reducing the unnecessary regulations that limit entrepreneurship, investing in New York’s children and creating exciting, safe, walkable streetscapes,” Ratti and Glaeser write.

Researchers from MIT and the Amsterdam Institute for Advanced Metropolitan Solutions have been developing an electric autonomous trash boat, reports Sarah Holder for Bloomberg. The boats “could reduce noise, pollution, and congestion, thus improving the quality of Amsterdam’s historic cityscape.”