Emissions

MIT President L. Rafael Reif and Special Presidential Envoy for Climate John Kerry discussed the urgency of addressing climate change during the Climate Grand Challenges Showcase event, reports Chris Lisinski for the State House News Service. “Climate change has been called a ‘super wicked’ problem. In Boston, that might sound like a local way of saying ‘really hard,’ but this phrase is actually a technical term,” Reif said. “It describes any enormously complex societal problem that has no single right answer and no clear finish line as well as multiple stakeholders with conflicting priorities and no central authority empowered to solve it.”

Bloomberg News reporter Janet Wu speaks with President L. Rafael Reif and Special Presidential Envoy for Climate John Kerry during the Institute’s Climate Grand Challenges showcase event. “If you can capture the emissions -- literally, genuinely -- then you’re reducing the problem,” said Kerry of the importance of eliminating greenhouse gas emissions.

MIT announced five projects "targeting the world's toughest climate riddles" that were selected following a rigorous two-year competition, reports Benjamin Kail for Boston Business Journal. “Climate Grand Challenges represents a whole-of-MIT drive to develop game-changing advances to confront the escalating climate crisis, in time to make a difference,” says President L. Rafael Reif.

Mashable reporter Emmett Smith spotlights how MIT researchers have developed a new technique to clear dust from solar panels without using water. The new method uses “electrostatic repulsion, where an electrode that glides above the panel electrically charges dust particles and subsequently repels them.”

MIT engineers have developed a new contactless method to clean solar panels that could save billions of gallons of water, reports Anuradha Varanasi for Popular Science. “I was amazed at the sheer amount of pure water that is required for cleaning solar panels,” says Prof. Kripa Varanasi. “The water footprint of the solar industry is only going to grow in the future. We need to figure out how to make solar farms more sustainable.”

Prof. Kripa Varanasi, graduate student Sreedath Panath, and a team of researchers are developing a water-free way to clear dust off of solar panels, reports Billy Hurley and Ed Brown for Tech Briefs. “Water is such a precious commodity, and people need to be careful about how to make use of this resource that we have,” says Varanasi. “The solar industry really needs to keep this in mind; we don’t want to be solving one problem and creating another.”

MIT researchers have developed a new water-free system that uses static electricity to clear dust from solar panels, reports Miriam Fauzia for The Daily Beast. “By using this technique, we can recover up to 95 percent of a solar panel’s power output,” explains graduate student Sreedath Panat.

New Scientist reporter Chen Ly writes that MIT researchers have developed a new technique that uses static electricity to remove the dust from solar panels, which could save around 45 billion liters of water annually. “I think water is a precious commodity that is very undervalued,” says Prof. Kripa Varanasi. “What I’m hoping is this will spur more people to think about water issues.”

Writing for Bloomberg Law, Prof. Jacopo Buongiorno, Elina Teplinsky of Pillsbury Winthrop Shaw Pittman and Jessica Lovering of Good Energy Collective make the case for nuclear power playing an important role in the transition to clean energy. “Because of the immensity of the looming crisis, no single energy source can be the climate silver bullet,” they write.

Assaf Biderman ‘05, associate director of the MIT SENSEable City Lab, discusses his startup Superpedestrian, a transportation robotics company that has developed electric scooters available in over 60 cities across the world.  “I think we hit the holy grail of micromobility, which is detecting when you’re on the sidewalk every time and stopping or slowing the vehicle,” said Biderman.

Politico reporter Alex Daugherty spotlights a study from MIT and the International Council on Clean Transportation which found “that the use of alternative jet fuels like e-kerosene in supersonic transport aircraft would still lead to an increased worsening of climate change because these faster gets burn more fuel per passenger.”

In a letter to the Financial Times, Prof. Donald Sadoway underscores the need for new smelting capacity to meet the growing need for copper for the transition to clean energy. “Imagine a process that produces superior metal at lower cost with zero greenhouse gas emissions,” writes Sadoway. “Such technology would recapture domestic market share from foreign producers. We must invent the future; we cannot simply legislate for it.”

Sean Hunt PhD ’16, M. Eng ’13 and Gaurab Chakrabarti co-founded Solugen after discovering a way to make chemicals from corn syrup instead of fossil fuels, reports Adele Peters for Fast Company. “Based on a detailed analysis of current products, the company estimates that it could theoretically produce 90% of the chemicals that are now produced by fossil fuels,” writes Peters.

Bloomberg Opinion reporters Peter R. Orszag and Zachery Halem spotlight Prof. Andrew Lo's work examining the relationship between global companies, their equity value, and greenhouse gas emissions. “With carbon prices rising and other climate-protection measures strengthening, it’s reasonable to speculate that company valuations will become increasingly tied to emissions control,” writes Orszag and Halem. 

Fortune reporter Shawn Tully writes that a new study co-authored by MIT researchers that examines the amount of e-waste Bitcoin generates. The researchers found that: “In 2020, the Bitcoin network processed 120 million transactions,” writes Tully. “For every sale or purchase recorded on the blockchain, the miners disposed of e-waste equal in weight to two iPhone 12 Minis. In other words, the industry trashed the equivalent of 240 million of the 135 gram mobile devices.”