Professors Jake Jacoby, Valerie Karplus, Tom Malone, and John Sterman discussed their COP21 experiences on a panel moderated by MITEI Deputy Director Rob Stoner.
News and Outreach: Henry Jacoby
MIT events throughout climate talks underscore Institute's global perspectives and partnerships
Professors Henry Jacoby and Valerie Karplus (MIT Sloan School of Management) and their collaborator, professor Xiliang Zhang (Tsinghua University; MIT-Tsinghua China Energy & Climate Project) speak at this event. Addressing an audience of COP21 attendees, MIT alumni, current students, and others, they discussed how China’s actions coming out of COP21 could help shape the future global energy system.
Leading climate economists discuss prospects for a successful outcome to the COP21 meeting.
Henry "Jake" Jacoby Raises Climate Change Concerns at UNU-WIDER Conference.
David L. Chandler | MIT News Office
A gathering of MIT students, faculty, staff, and alumni took part Thursday in series of talks, polling questions, and brainstorming sessions aimed at spurring the whole MIT community to engage in the process of making the Institute a world leader, role model, and catalyst for how campuses around the world can work to reduce their carbon footprint and create a more sustainable environment.
The event, billed as “Creating the Roadmap: Envisioning/Reducing MIT's Carbon Footprint,” began with talks outlining the MIT campus’ current energy usage and emissions, and the presentation of plans for new buildings and renovations that could have an impact on energy use. During the talks, participants had a chance to register their responses to questions about both factual information on campus energy use and opinions about priorities for improving things. Then, the group broke into small teams for brainstorming about suggestions on specific measures to reduce campus greenhouse-gas emissions.
“We’re here to engage you all in renewing the campus in a sustainable manner,” said Israel Ruiz, MIT’s executive vice president and treasurer, who initiated MIT’s creation two years ago of an Office of Sustainability. “It’s an issue I care a lot about,” he said, “how we’re actually going to change the world through what we do here.”
Ruiz pointed out that the campus already faces the need to carry out about $2 billion worth of renovations on its existing buildings over the next five to 10 years, but that need also presents a great opportunity for improving the overall energy efficiency of the campus.
In addition, he said, MIT has “a lot of great research where we can use the campus for experiments,” and potentially find innovations that other institutions can emulate.
Introducing the event, Christoph Reinhart, a professor of architecture, said the idea was to “seek broad input and see how MIT can respond” to the challenge of climate change, “and what we can do as a community” to address our own energy usage. “Based on this input, we will write a final report,” he said, and over the next few months all members of the MIT community are encouraged to submit suggestions and comments online, which need not be fully thought out or detailed.
MIT has 171 buildings totaling 12 million square feet of space, he said. Though that’s a minuscule footprint by global standards, how MIT manages its own facilities could have a disproportionate impact, he said: “We see ourselves as a catalyst for change, and there are a lot of people in the world looking at what we do.” If the Institute can find solutions on campus that are scalable and replicable, he said, “we can have an influence.”
Henry “Jake” Jacoby, professor emeritus of management, underscored that point, saying “MIT is really small, but in terms of demonstrating what can be done, it’s really important.” He suggested that one critical step would be to change the way accounting is done so that different departments and labs would explicitly have to account for their energy use in their own budgets, giving them a direct incentive to find more efficient approaches.
It’s essential, Jacoby added, given MIT’s reputation in the world, that “we don’t do things that are symbolic but don’t have a real effect.” It’s important to “not just do it, but do it right.”
In moving toward innovative solutions, one key aspect for a data-driven place like MIT is to improve the ability to collect detailed energy use data at a building-by-building level or better, and that process is already well underway, said Sarah Bylinsky, a program manager in the sustainability office. “We can’t manage what we can’t measure,” she said.
In making MIT into a world-leading example of how to maximize efficiency and minimize its impact on climate, Ruiz said that “the willingness is there, and there’s a full menu of opportunities.” Now, he said, it’s up to all the members of the MIT family to “help us choose what’s most effective for our community.”
In looking for innovative solutions, Bylinsky said, “we have to embolden ourselves. We shouldn’t be afraid to think big, beyond our current capacity, and to do as much as we can.”
Ben Geman
National Journal
Don't expect too much from the global climate-change accord that's expected to emerge from high-stakes international talks in Paris next year.
A new MIT study concludes that even if negotiators reach a deal at the United Nations conference, it probably won't be enough to limit global temperature increases to 2 degrees Celsius above pre-industrial levels. That's the level many scientists say would help stave off some of the most dangerous and disruptive effects of climate change.
Here's the study's bottom line on what to expect from the so-called Conference of the Parties 21 in Paris: "Based on our expectations for the architecture of a COP-21 agreement, and our predictions about the national contributions likely to come forth under it, our analysis concludes that these international efforts will indeed bend the curve of global emissions. However, our results also show that these efforts will not put the globe on a path consistent with commonly stated long-term climate goals," states the paper by economics professor Henry Jacoby and Y-H Henry Chen, who both work with MIT's Joint Program on the Science and Policy of Global Change.
The 2°C ceiling has been highly optimistic for a while, as global greenhouse-gas emissions continue to soar.
Recent Publications
Morris, J., A. Sokolov, J. Reilly, A. Libardoni, C.S. Forest, S. Paltsev, C. A. Schlosser, R. Prinn and H. Jacoby (2025)
Nature Communications, 16(2703) (doi: 10.1038/s41467-025-57897-1)
Yohe, G., H. Jacoby, R. Richels and B. Santer
(2023)
Springer Cham, doi: 10.1007/978-3-030-96372-9_1
Yuan, M., A. Barron, N. Selin, P. Picciano, L. Metz, J. Reilly and H. Jacoby
(2022)
Environmental Research Letters, 17(5) (doi: 10.1088/1748-9326/ac6227)
News + Media
First workshop explores concept and potential research directions

Amid growing concern about environmental and socioeconomic “tipping point” events, the MIT Center for Sustainability Science and Strategy (CS3) has launched a new, interactive workshop series aimed at advancing research discussions and collaborations to better understand, predict and inform proactive responses to their potential emergence. The kickoff Tipping Points workshop, held on February 27 on Zoom and facilitated by CS3 Deputy Director C. Adam Schlosser and Principal Research Scientist Jennifer Morris, included an overview of the concept, three flash talks on tipping points science and its potential application, and breakout sessions to identify key research challenges and opportunities.

Amid growing concern about environmental and socioeconomic “tipping point” events, the MIT Center for Sustainability Science and Strategy (CS3) has launched a new, interactive workshop series aimed at advancing research discussions and collaborations to better understand, predict and inform proactive responses to their potential emergence. The kickoff Tipping Points workshop, held on February 27 on Zoom and facilitated by CS3 Deputy Director C. Adam Schlosser and Principal Research Scientist Jennifer Morris, included an overview of the concept, three flash talks on tipping points science and its potential application, and breakout sessions to identify key research challenges and opportunities.