IAMA Climate Scientist who studies ideas to directly cool the planet to reduce the risks of climate change, known as solar geoengineering, and I think they might actually be used. Ask me anything.
Hi, I'm Pete Irvine, PhD (UCL) and I'm here to answer any questions you might have about solar geoengineering and climate change.
I've been studying solar geoengineering for over a decade and I believe that if used wisely it has the potential to greatly reduce the risks of climate change. Given the slow progress on emissions cuts and the growing impacts of climate change, I think this is an idea that might actually be developed and deployed in the coming decades.
I've published over 30 articles on solar geoengineering, including:
- A fairly accessible overview of the science of solar geoengineering.
- A study where we show it would reduce most climate changes in most places, worsening some climate changes in only a tiny fraction of places.
- A comment where we argue that it could reduce overall climate risks substantially and *might* reduce overall climate risks in ALL regions.
I'm also a co-host of the Challenging Climate podcast where we interview leading climate experts and others about the climate problem. We've had sci-fi author Neal Stephenson, Pulitzer prize winner Elizabeth Kolbert, and climate scientist Prof. Gavin Schmidt.
Ask Me Anything. I'll be around today from 12:45 PM Eastern to 3 PM Eastern.
Proof: Here you go.
EDIT: Right, that was fun. Thanks for the great questions!
EDIT2: Looks like this grew a bit since I left. Here's a couple of videos for those who want to know more:
- Here's a video where I give a ~30 minute overview of solar geoengineering
- And, Here's a video where I debate solar geoengineering with the former spokesperson for Extinction Rebellion.
EDIT3: Looks like this is still growing, so I'm going to answer some more questions
for the next hour or so, that's up to 13:30 Eastern 15th July.Oops, I forgot I have a doctor's appointment. Will check back later.
I've also just put together a substack where I'll put out some accessible articles on the topic.