A radical solution to address climate change, with David Keith

Climate change can feel like an impossible crisis these days. Every week there is some new report about the irreversible damage we’re doing to our planet and the havoc it will bring to people’s lives. We all know cutting emissions is the solution, yet governments and companies seem no closer to meeting the goals that scientists say we must hit. It can feel hopeless.

There is one possible controversial solution to climate change many in the mainstream haven’t discussed. It’s so controversial, in fact, that some experts say we shouldn’t even be discussing it. But University of Chicago Professor David Keith says we need to talk about it. It’s called solar geoengineering—the process in which you reflect a small fraction of sunlight back into space using aerosols. As the founding director of the Climate Systems Engineering Initiative at UChicago, Keith is leading a team that will research solar geoengineering and other novel solutions to climate change.

Original post on Big Brains Podcast

Crooked: There Goes the Sun?

We have every reason in the world to try to stop climate change. But when it comes to geoengineering––lacing the atmosphere with particles to block the sun’s warming effect––experts are split on whether the intervention would create more problems than it would solve. At this rate of global warming, though, it’s hard to imagine a scenario in which humans won’t eventually try it out. Inadvertently, we’ve already piloted the method through air pollution. Is the geoengineering genie already out of the bottle? Should we even want to stop it? Are there ways to deploy these efforts that will insure against scenarios where we wish we’d never tried? Host Brian Beutler is joined by Elizabeth Kolbert, a New Yorker staff writer and author of Under a White Sky, and Dr. David Keith, a professor of geophysical sciences at the University of Chicago and an advocate for geoengineering research.

Original post on Crooked

Freakonomics: Solar Geoengineering Would Be Radical. It Might Also Be Necessary.

Straight Talk with Hank Paulson: David Keith

Straight Talk with Hank Paulson · Episode 39: David Keith
Hank welcomes David Keith (Gordon McKay Professor of Applied Physics, Harvard John A. Paulson School of Engineering and Applied Sciences and Professor of Public Policy, Harvard Kennedy School) to Straight Talk to discuss his physics background, how he would define the climate challenge, climate diplomacy and addressing the global governance problem, what is needed to truly achieve carbon neutrality, solar geoengineering, and the next technologies in the energy industry.

MCJ Collective: An interview with David Keith

BBC: Risks and Potential Rewards of Man-Made Responses to Climate Change

Do we need more scrutiny and coordination when it comes to solar geoengineering?

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BBC: Can Sucking CO₂ Out of the Air Solve Climate Change?

We’ve released huge amounts of CO₂ into the air by burning fossil fuels, but are there ways to get it back out again? If so, could that slow down climate change?

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KCRW: Should we ‘hack the climate’ to fight global warming?

A raging dispute among climate scientists is breaking into the open.  Could they slow global warming by injecting aerosols into the atmosphere to reflect sunlight, or are the unintended consequences potentially so dangerous that even experimentation should be prohibited? The very idea was beyond the pale at the time of the Paris Agreement, but now it’s gaining some traction. Opponents say it’s beyond reckless.  Would trying to resolve one problem create others that could get out of control?

BBC: Weather on a distant exoplanet, Diamond batteries from nuclear waste, Craters, Avalanches and glaciers, Solar geoengineering

Would sending millions of tonnes of fine limestone dust high into the atmosphere every year deal with the problem of climate change? Would it be safe? Should we even research the questions?

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