Data scientist Hannah Ritchie and sustainability nerd Rob Stewart are climate optimists. They join forces to unpack solutions to the climate crisis, and the innovators, entrepreneurs and scientists behind them.
Charlotte Large: Can we heat homes from the London underground?
Saison 5 · Épisode 5
mardi 13 janvier 2026 • Durée 31:52
Unusual heat sources like the London Underground and data centres are being used to heat and cool cities - they’re called, quite simply, heat networks. The director of one of the largest district heat networks in the UK explores how this could be a major decarbonising solution for population dense places around the world.
Season five of Solving for Climate is sponsored by Xlinksxlinks.co
Ben Lamm: Would de-extincting species benefit the planet?
Saison 5 · Épisode 4
mardi 6 janvier 2026 • Durée 32:23
The co-founder of Colossal Biosciences makes the climate case for bringing back extinct species like the woolly mammoth and the dodo. Colossal say de-extinction through gene editing techniques could have positive impacts for conservation and improving biodiversity. But the environment has changed completely since mammoths roamed the earth, so we’ll examine how realistic those climate claims are.
Season five of Solving for Climate is sponsored by Xlinksxlinks.co
Rahul Tongia: Is India on track to meet climate goals?
Saison 5 · Épisode 3
mardi 16 décembre 2025 • Durée 33:58
Senior fellow at New Delhi based think-tank CSEP, Rahul Tongia, does a deep dive on India. It’s one of the world’s biggest emitters, but it’s also on the frontline of climate change; more than 80 percent of people live in places that are at risk of climate-induced disasters. Rahul explores whether their progress is fast enough, and whose responsibility it is to pay for those changes.
Season five of Solving for Climate is sponsored by Xlinksxlinks.co
Prof Ed Hawkins: How to start climate conversations
Saison 5 · Épisode 2
mardi 9 décembre 2025 • Durée 31:34
The scientist behind the famous warming stripes gives practical advice on how to talk about climate change in a way that actually brings about change. The climate stripes themselves will be remembered in history as a pivotal point in climate debate. Professor Ed Hawkins chats about what inspired the warming stripes, and the craziest reaction they’ve received.
Season five of Solving for Climate is sponsored by Xlinksxlinks.co
In this episode we put our resident data scientist in the hot seat, and discuss a range of topics across her new book, Clearing the Air. From AI’s energy appetite to the future of your household bills, and why electric vehicles leave Hannah feeling hopeful - her sharp, evidence driven answers will make you reconsider the headlines.
Season five of Solving for Climate is sponsored by Xlinksxlinks.co
Hannah Ritchie, Deputy Editor and Lead Researcher, Our World in Data @_HannahRitchie
Mina Hasman: Inside the world of sustainable architecture
Saison 4 · Épisode 5
mardi 30 septembre 2025 • Durée 29:33
Sustainability Director at the firm Skidmore, Owings & Merrill makes the case for solutions like algae-based concrete and direct air capture to be used within the buildings she designs.
The materials and methods used in contemporary design are a recipe for what are currently very high carbon emissions. Hannah reflects on whether these are just pie in the sky ideas.
Season four of Solving for Climate is sponsored by Xlinksxlinks.co
Founder of Orca Sciences reveals the surprisingly easy fix for contrails in aviation. As an incubator for other startups looking to get off the ground, Orca Sciences asks big questions like, how do we get rid of ‘sky graffiti’? Can you heat the earth directly? And can we just eat carbon?
Hannah Ritchie, Deputy Editor and Lead Researcher, Our World in Data @_HannahRitchie
Leah Ellis: How do you decarbonise concrete?
Saison 4 · Épisode 3
mardi 16 septembre 2025 • Durée 29:24
The CEO of Sublime Systems chats about their alternative to make cement. Generating about 8% of all global carbon dioxide emissions, Leah is using an exciting electrochemical process to reduce this figure. It’s used in the buildings around you, the roof over your head and the foundations beneath your feet - so how difficult will it be to reduce these high carbon emissions?
Season four of Solving for Climate is sponsored by Xlinksxlinks.co
Lauri Myllyvirta: Is China a global climate leader?
Saison 4 · Épisode 2
mardi 9 septembre 2025 • Durée 29:27
Senior fellow at the Asia Society Policy Institute's China Climate Hub, Lauri Myllyvirta, delivers a deep dive on China’s climate picture. Why is a country responsible for the overwhelming majority of the world’s emissions also scaling renewable energy at lightning speed? Hannah crunches the numbers on whether China’s construction of coal fired power plants comes at odds with their renewable credentials.
Season four of Solving for Climate is sponsored by Xlinksxlinks.co
Prof Alex Edmans: Does divestment from fossil fuels work?
Saison 4 · Épisode 1
mardi 2 septembre 2025 • Durée 38:48
Finance expert Professor Alex Edmans is sceptical that divesting from fossil fuels will make an impact and reduce carbon emissions. With his experience on the World Economic Forum’s Global Future Council on Responsible Investing, he chats to Hannah and Rob about how a carbon tax is a no brainer climate solution instead.
Season four of Solving for Climate is sponsored by Xlinksxlinks.co
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