Dimming the Sun

It's the time of year when nations come together to try and agree on a plan to futureproof the planet. But in the lead up to the Conference of the Parties 31, another meeting takes place – a smaller gathering, but one some would argue is just as important. COP17, the 17th meeting ...  Show more

The first ever spacecraft to bring Martian samples back to Earth has launched from Japan. However, before the spacecraft returns from Phobos in 2031 there are many complex challenges that lie ahead, leaving an anxious 5 year wait for the scientists involved. To help us understand ...  Show more

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

If we’re not going to make the effort to cut carbon emissions, why don’t we manipulate Earth’s climate, forcing it to cool down? Obviously that’s not ideal - but geoengineering, one the most controversial proposals to combat climate change, is back in the spotlight this week. In ...  Show more

The political message from the COP meeting was a fudge over coal, but what does the science say? Surprisingly India seems to be on track to switch away from coal to renewables. We explore the apparent contradiction with Lauri Myllyvirta of the thinktank Centre for Research on Ene ...  Show more