Cities

In an article for Bloomberg, Prof. Carlo Ratti and Michael Baick, a staff writer at CRA-Carlo Ratti Associati, highlight the importance of communication within cities. “The world has an incredible stockpile of effective urban policies, but the best ideas are not being adopted quickly or widely enough,” write Ratti and Baick. “Covid-19 taught us all how to slow the spread of viruses: wear masks, avoid large gatherings and take vaccines. To speed the spread of good ideas, we need to take the opposite tack by making urban solutions go viral.”

WBUR reporter Daniel Ackerman spotlights Sublime Systems, an MIT startup working to develop “construction-ready, emissions-free cement.” Ackerman explains that: “Sublime’s new approach uses electricity instead of heat. That means the process can be powered with renewable energy rather than fossil fuels. The method also prevents carbon dioxide from escaping the carbon-rich limestone during combustion.”

Writing for The Boston Globe, MIT Prof. Carlo Ratti and Harvard Prof. Antoine Picon examine AI and the future of cities, noting that their research has shown “once trained, visual AI is shockingly accurate at predicting property values, crime rates, and even public health outcomes — just by analyzing photos.” They add: “Tireless, penetrating artificial eyes are coming to our streets, promising to show us things we have never seen before. They will be incredible tools to guide us — but only if we keep our own eyes open.”

Olivier Faber MArch ’23, Tim Cousin MArch ’23 and Eytan Levi MArch/MSRED ’21 co-founded Roofscapes Studio – an MIT startup that is transforming rooftops into green roofs to provide outdoor spaces in cities and combat the effects of climate change, reports Julia Chatterley for CNN.

Nature reporter Andrew Robinson spotlights “Atlas of the Senseable City” a new book co-authored by Prof. Carlo Ratti. The book is a “highly illustrated collection of digital maps,” Robinson notes, adding that it “analyzes four essential urban dimensions: motion, connection, circulation and experience.”

Researchers from MIT have found that since the Covid-19 pandemic, there has been a decrease in the number of interactions between people from different socioeconomic backgrounds, reports Danny Westneat for The Seattle Times. “It’s creating an urban fabric that is actually more brittle, in the sense that we are less exposed to other people,” says research scientist Esteban Moro. “We don’t get to know other people in the city … to know other people’s needs. If we don’t see them around the city, that will be impossible.”

Sublime Systems, a startup founded by Prof. Yet-Ming Chiang and former MIT postdoc Leah Ellis, is working to decarbonize cement making – a process which currently accounts for eight percent of global carbon emissions. “The world has a huge appetite for cement, and Sublime is working to scale its production to meet it,” writes Casey Crownhart for The Spark, MIT Technology Review’s weekly climate newsletter. 

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.”