#32: Billionaire plan to geoengineer the plan...

Episode 407 The latest UN climate report is out and we’ve blown past 1.5 degrees of warming. We’re now in “overshoot” - an acknowledgement that global temperatures will rise beyond 1.5 degrees, but can theoretically be brought back down again through cooling efforts. But with the ...  Show more

Episode 406 The glymphatic system is the brain’s waste disposal system - responsible for clearing out harmful toxins that build up during the day. Now a new mouse study has connected reduced glyphatic flow to Alzheimer’s disease. And because this glymphatic system cleans the brai ...  Show more

Could we create an atmospheric sun shield to halt the effects of global warming? Should we? Neil deGrasse Tyson, Chuck Nice, and Gary O’Reilly are joined by climate scientist Daniele Visioni and sociologist Holly Jean Buck to explore the science and ethics of deliberately alte ...

Solar geoengineering — the idea of cooling the planet by deflecting the sun’s rays — is so risky that scientists and policy experts can’t even agree on whether to research it. This episode was produced by Avishay Artsy, edited by Matt Collette and Amina Al-Sadi, fact-checked by L ...  Show more

Direct air carbon capture - taking carbon dioxide straight out of the air around us - sounds like science fiction. In this episode of Tech Tonic Pilita Clark visits Iceland to meet the engineers and scientists at the forefront of this new tech. Can carbon cap ...