Solving for Climate

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 Xlinks xlinks.co Podcast transcripts available on Substack Charlotte Large , Director of Clean Energy & Heat Networks at Westminster City Council Co-hosts Hannah Ritchie , Deputy Editor and Lead Researcher, Our World in Data @_HannahRitchie Rob Stewart , Co-founder Stealth AI startup Subscribe to Hannah's Substack ' Sustainability by numbers ' Want to get in touch? Email solvingforclimate@gmail.com Maddie Drury, Series Producer Transcriptions available: https://solvingforclimate.substack.com/ Co-hosts Hannah Ritchie , Deputy Editor and Lead Researcher, Our World in Data @_HannahRitchie Rob Stewart , Co-founder and Director of Sustainability, Koba Subscribe to Hannah's Substack ' Sustainability by numbers ' Want to get in touch? Email solvingforclimate@gmail.com Maddie Drury, Series Producer Hosted on Acast. See acast.com/privacy for more information.

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 Xlinks xlinks.co Podcast transcripts available on Substack Ben Lamm, co-founder Colossal Biosciences Co-hosts Hannah Ritchie , Deputy Editor and Lead Researcher, Our World in Data @_HannahRitchie Rob Stewart , Co-founder Stealth AI startup Subscribe to Hannah's Substack ' Sustainability by numbers ' Want to get in touch? Email solvingforclimate@gmail.com Maddie Drury, Series Producer Transcriptions available: https://solvingforclimate.substack.com/ Co-hosts Hannah Ritchie , Deputy Editor and Lead Researcher, Our World in Data @_HannahRitchie Rob Stewart , Co-founder and Director of Sustainability, Koba Subscribe to Hannah's Substack ' Sustainability by numbers ' Want to get in touch? Email solvingforclimate@gmail.com Maddie Drury, Series Producer Hosted on Acast. See acast.com/privacy for more information.

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 Xlinks xlinks.co Podcast transcripts available on Substack Rahul Tongia, Senior fellow at CSEP Co-hosts Hannah Ritchie , Deputy Editor and Lead Researcher, Our World in Data @_HannahRitchie Rob Stewart , Co-founder Stealth AI startup Subscribe to Hannah's Substack ' Sustainability by numbers ' Want to get in touch? Email solvingforclimate@gmail.com Maddie Drury, Series Producer Transcriptions available: https://solvingforclimate.substack.com/ Co-hosts Hannah Ritchie , Deputy Editor and Lead Researcher, Our World in Data @_HannahRitchie Rob Stewart , Co-founder and Director of Sustainability, Koba Subscribe to Hannah's Substack ' Sustainability by numbers ' Want to get in touch? Email solvingforclimate@gmail.com Maddie Drury, Series Producer Hosted on Acast. See acast.com/privacy for more information.

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 Xlinks xlinks.co Podcast transcripts available on Substack Professor Ed Hawkins , Professor of Climate Science at the University of Reading Co-hosts Hannah Ritchie , Deputy Editor and Lead Researcher, Our World in Data @_HannahRitchie Rob Stewart , Co-founder Stealth AI startup Subscribe to Hannah's Substack ' Sustainability by numbers ' Want to get in touch? Email solvingforclimate@gmail.com Maddie Drury, Series Producer Transcriptions available: https://solvingforclimate.substack.com/ Co-hosts Hannah Ritchie , Deputy Editor and Lead Researcher, Our World in Data @_HannahRitchie Rob Stewart , Co-founder and Director of Sustainability, Koba Subscribe to Hannah's Substack ' Sustainability by numbers ' Want to get in touch? Email solvingforclimate@gmail.com Maddie Drury, Series Producer Hosted on Acast. See acast.com/privacy for more information.

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 Xlinks xlinks.co Podcast transcripts available on Substack Co-hosts Hannah Ritchie , Deputy Editor and Lead Researcher, Our World in Data @_HannahRitchie Rob Stewart , Co-founder Stealth AI startup Subscribe to Hannah's Substack ' Sustainability by numbers ' Want to get in touch? Email solvingforclimate@gmail.com Maddie Drury, Series Producer Transcriptions available: https://solvingforclimate.substack.com/ Co-hosts Hannah Ritchie , Deputy Editor and Lead Researcher, Our World in Data @_HannahRitchie Rob Stewart , Co-founder and Director of Sustainability, Koba Subscribe to Hannah's Substack ' Sustainability by numbers ' Want to get in touch? Email solvingforclimate@gmail.com Maddie Drury, Series Producer Hosted on Acast. See acast.com/privacy for more information.

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 Xlinks xlinks.co Podcast transcripts available on Substack Mina Hasman, Sustainability Director at SOM Hannah’s series at Our World in Data on extreme heat Co-hosts Hannah Ritchie , Deputy Editor and Lead Researcher, Our World in Data @_HannahRitchie Rob Stewart , Co-founder Stealth AI startup Subscribe to Hannah's Substack ' Sustainability by numbers ' Want to get in touch? Email solvingforclimate@gmail.com Maddie Drury , Series Producer Transcriptions available: https://solvingforclimate.substack.com/ Co-hosts Hannah Ritchie , Deputy Editor and Lead Researcher, Our World in Data @_HannahRitchie Rob Stewart , Co-founder and Director of Sustainability, Koba Subscribe to Hannah's Substack ' Sustainability by numbers ' Want to get in touch? Email solvingforclimate@gmail.com Maddie Drury, Series Producer Hosted on Acast. See acast.com/privacy for more information.

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? Season four of Solving for Climate is sponsored by Xlinks xlinks.co Podcast transcripts available on Substack Ian McKay, Founder of Orca Sciences Co-hosts Hannah Ritchie , Deputy Editor and Lead Researcher, Our World in Data @_HannahRitchie Rob Stewart , Co-founder Stealth AI startup Subscribe to Hannah's Substack ' Sustainability by numbers ' Want to get in touch? Email solvingforclimate@gmail.com Maddie Drury , Series Producer Transcriptions available: https://solvingforclimate.substack.com/ Co-hosts Hannah Ritchie , Deputy Editor and Lead Researcher, Our World in Data @_HannahRitchie Rob Stewart , Co-founder and Director of Sustainability, Koba Subscribe to Hannah's Substack ' Sustainability by numbers ' Want to get in touch? Email solvingforclimate@gmail.com Maddie Drury, Series Producer Hosted on Acast. See acast.com/privacy for more information.

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 Xlinks xlinks.co Podcast transcripts available on Substack Leah Ellis, CEO Sublime Systems Co-hosts Hannah Ritchie , Deputy Editor and Lead Researcher, Our World in Data @_HannahRitchie Rob Stewart , Co-founder Stealth AI startup Subscribe to Hannah's Substack ' Sustainability by numbers ' Want to get in touch? Email solvingforclimate@gmail.com Maddie Drury , Series Producer Transcriptions available: https://solvingforclimate.substack.com/ Co-hosts Hannah Ritchie , Deputy Editor and Lead Researcher, Our World in Data @_HannahRitchie Rob Stewart , Co-founder and Director of Sustainability, Koba Subscribe to Hannah's Substack ' Sustainability by numbers ' Want to get in touch? Email solvingforclimate@gmail.com Maddie Drury, Series Producer Hosted on Acast. See acast.com/privacy for more information.

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 Xlinks xlinks.co Podcast transcripts available on Substack Lauri Myllyvirta , Co-founder, Centre for Research on Energy and Clean Air & Senior Fellow, Asia Society Policy Institute Co-hosts Hannah Ritchie , Deputy Editor and Lead Researcher, Our World in Data @_HannahRitchie Rob Stewart , Co-founder Stealth AI startup Subscribe to Hannah's Substack ' Sustainability by numbers ' Want to get in touch? Email solvingforclimate@gmail.com Madeleine Drury , Series Producer Transcriptions available: https://solvingforclimate.substack.com/ Co-hosts Hannah Ritchie , Deputy Editor and Lead Researcher, Our World in Data @_HannahRitchie Rob Stewart , Co-founder and Director of Sustainability, Koba Subscribe to Hannah's Substack ' Sustainability by numbers ' Want to get in touch? Email solvingforclimate@gmail.com Maddie Drury, Series Producer Hosted on Acast. See acast.com/privacy for more information.

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 Xlinks xlinks.co Podcast transcripts available on Substack Professor Alex Edmans, Professor of Finance at London Business School Co-hosts Hannah Ritchie , Deputy Editor and Lead Researcher, Our World in Data @_HannahRitchie Rob Stewart , Co-founder Stealth AI startup Subscribe to Hannah's Substack ' Sustainability by numbers ' Want to get in touch? Email solvingforclimate@gmail.com Madeleine Drury , Series Producer Transcriptions available: https://solvingforclimate.substack.com/ Co-hosts Hannah Ritchie , Deputy Editor and Lead Researcher, Our World in Data @_HannahRitchie Rob Stewart , Co-founder and Director of Sustainability, Koba Subscribe to Hannah's Substack ' Sustainability by numbers ' Want to get in touch? Email solvingforclimate@gmail.com Maddie Drury, Series Producer Hosted on Acast. See acast.com/privacy for more information.

Head of the International Geothermal Association, Dr Marit Brommer, says the world is sleeping on the power of geothermal. Currently, we use it’s energy for less than 0.5% of the world’s electricity. So she’s on a mission to convince governments and businesses about the untapped potential of the heat beneath our feet. Season two of Solving for Climate is sponsored by Xlinks xlinks.co Dr Marit Brommer, International Geothermal Association Co-hosts Hannah Ritchie , Deputy Editor and Lead Researcher, Our World in Data @_HannahRitchie Rob Stewart , Co-founder and Director of Sustainability, Koba Subscribe to Hannah's Substack ' Sustainability by numbers ' Want to get in touch? Email solvingforclimate@gmail.com Maddie Drury, Series Producer Transcriptions available: https://solvingforclimate.substack.com/ Co-hosts Hannah Ritchie , Deputy Editor and Lead Researcher, Our World in Data @_HannahRitchie Rob Stewart , Co-founder and Director of Sustainability, Koba Subscribe to Hannah's Substack ' Sustainability by numbers ' Want to get in touch? Email solvingforclimate@gmail.com Maddie Drury, Series Producer Hosted on Acast. See acast.com/privacy for more information.

Neste has been developing an alternative to kerosene for powering planes over the past decade. CEO Heikki Malinen explains how SAF can be used alongside other advancements in aviation technology to reduce carbon emissions that come from flying. But with demand expected to increase, is the industry moving fast enough? Season three of Solving for Climate is sponsored by Xlinks xlinks.co Heikki Malinen , Neste Further resources: If you want to dig deeper into aviation demand, and pathways to low-carbon flying in the future, this paper is a good place to start (https://www.nature.com/articles/s41893-022-01046-9) Co-hosts Hannah Ritchie , Deputy Editor and Lead Researcher, Our World in Data @_HannahRitchie Rob Stewart , Co-founder and Director of Sustainability, Koba Subscribe to Hannah's Substack ' Sustainability by numbers ' Want to get in touch? Email solvingforclimate@gmail.com Maddie Drury, Series Producer Transcriptions available: https://solvingforclimate.substack.com/ Co-hosts Hannah Ritchie , Deputy Editor and Lead Researcher, Our World in Data @_HannahRitchie Rob Stewart , Co-founder and Director of Sustainability, Koba Subscribe to Hannah's Substack ' Sustainability by numbers ' Want to get in touch? Email solvingforclimate@gmail.com Maddie Drury, Series Producer Hosted on Acast. See acast.com/privacy for more information.

Boston Metal are working on an alternative to a millennia old production process. The steel industry is responsible for around 7% of the world’s carbon emissions; decarbonisation is crucial. As Chief Scientist at Boston Metal, Guillaume Lambotte breaks down the chemistry behind their alternative process for making steel. He explains how even though the steel industry will be impossible to change overnight, even a small reduction in emissions could have a positive impact on our planet. Season three of Solving for Climate is sponsored by Xlinks xlinks.co Guillaume Lambotte, Boston Metal Co-hosts Hannah Ritchie , Deputy Editor and Lead Researcher, Our World in Data @_HannahRitchie Rob Stewart , Co-founder and Director of Sustainability, Koba Subscribe to Hannah's Substack ' Sustainability by numbers ' Want to get in touch? Email solvingforclimate@gmail.com Maddie Drury, Series Producer Transcriptions available: https://solvingforclimate.substack.com/ Co-hosts Hannah Ritchie , Deputy Editor and Lead Researcher, Our World in Data @_HannahRitchie Rob Stewart , Co-founder and Director of Sustainability, Koba Subscribe to Hannah's Substack ' Sustainability by numbers ' Want to get in touch? Email solvingforclimate@gmail.com Maddie Drury, Series Producer Hosted on Acast. See acast.com/privacy for more information.

As a senior researcher at Trase, Mark uses data like satellite imagery and shipping routes to help companies and governments track supply chains. Trase identifies links to deforestation, but do companies actually use this data to make a difference? Season three of Solving for Climate is sponsored by Xlinks xlinks.co Mark Titley , Trase Co-hosts Hannah Ritchie , Deputy Editor and Lead Researcher, Our World in Data @_HannahRitchie Rob Stewart , Co-founder and Director of Sustainability, Koba Subscribe to Hannah's Substack ' Sustainability by numbers ' Want to get in touch? Email solvingforclimate@gmail.com Maddie Drury, Series Producer Transcriptions available: https://solvingforclimate.substack.com/ Co-hosts Hannah Ritchie , Deputy Editor and Lead Researcher, Our World in Data @_HannahRitchie Rob Stewart , Co-founder and Director of Sustainability, Koba Subscribe to Hannah's Substack ' Sustainability by numbers ' Want to get in touch? Email solvingforclimate@gmail.com Maddie Drury, Series Producer Hosted on Acast. See acast.com/privacy for more information.

The Chief Executive of the UK’s Climate Change Committee explains how our lives will change by 2050 if we continue to cut carbon emissions. She explains how her electric car is like her 'third child' and why she isn’t recommending we use hydrogen to power transport in the future. Season two of Solving for Climate is sponsored by Xlinks xlinks.co Emma Pinchbeck , the Climate Change Committee Co-hosts Hannah Ritchie , Deputy Editor and Lead Researcher, Our World in Data @_HannahRitchie Rob Stewart , Co-founder and Director of Sustainability, Koba Subscribe to Hannah's Substack ' Sustainability by numbers ' Want to get in touch? Email solvingforclimate@gmail.com Madeleine Drury , Series Producer Transcriptions available: https://solvingforclimate.substack.com/ Co-hosts Hannah Ritchie , Deputy Editor and Lead Researcher, Our World in Data @_HannahRitchie Rob Stewart , Co-founder and Director of Sustainability, Koba Subscribe to Hannah's Substack ' Sustainability by numbers ' Want to get in touch? Email solvingforclimate@gmail.com Maddie Drury, Series Producer Hosted on Acast. See acast.com/privacy for more information.

We use an enormous amount of land for animal agriculture and crops like palm oil. But there’s a new fat on the market which is offering an alternative to dairy and vegetable oils. CEO of Savor, Kathleen Alexander, discusses the company’s synthetic alternative and explains how they designed it to make the perfect pastry. Find out how this was born from a surprising question: Can we not just eat fossil fuels? Season two of Solving for Climate is sponsored by Xlinks xlinks.co Kathleen Alexander, CEO of Savor Co-hosts Hannah Ritchie , Deputy Editor and Lead Researcher, Our World in Data @_HannahRitchie Rob Stewart , Co-founder and Director of Sustainability, Koba Subscribe to Hannah's Substack ' Sustainability by numbers ' Want to get in touch? Email solvingforclimate@gmail.com Maddie Drury, Series Producer Transcriptions available: https://solvingforclimate.substack.com/ Co-hosts Hannah Ritchie , Deputy Editor and Lead Researcher, Our World in Data @_HannahRitchie Rob Stewart , Co-founder and Director of Sustainability, Koba Subscribe to Hannah's Substack ' Sustainability by numbers ' Want to get in touch? Email solvingforclimate@gmail.com Maddie Drury, Series Producer Hosted on Acast. See acast.com/privacy for more information.

Small modular reactors. Nuclear fusion. Artificial intelligence. Senior economics correspondent for Cipher News, Cat Clifford, unpacks the latest innovations in nuclear energy and explains how China is leading the way. Season two of Solving for Climate is sponsored by Xlinks xlinks.co Cat Clifford, Senior Science and Economics Correspondent, Cipher News Co-hosts Hannah Ritchie , Deputy Editor and Lead Researcher, Our World in Data @_HannahRitchie Rob Stewart , Co-founder and Director of Sustainability, Koba Subscribe to Hannah's Substack ' Sustainability by numbers ' Want to get in touch? Email solvingforclimate@gmail.com Maddie Drury, Series Producer Transcriptions available: https://solvingforclimate.substack.com/ Co-hosts Hannah Ritchie , Deputy Editor and Lead Researcher, Our World in Data @_HannahRitchie Rob Stewart , Co-founder and Director of Sustainability, Koba Subscribe to Hannah's Substack ' Sustainability by numbers ' Want to get in touch? Email solvingforclimate@gmail.com Maddie Drury, Series Producer Hosted on Acast. See acast.com/privacy for more information.

How much attention should we give to carbon removal technology versus stopping carbon emissions in the first place? Climate scientist Zeke Hausfather discusses the opportunities for carbon removal technologies including advanced rock weathering, direct air capture and ocean storage. Season two of Solving for Climate is sponsored by Xlinks xlinks.co Zeke Hausfather , Climate scientist with Stripe Climate, Carbon Brief, the IPCC and Berkeley Earth Co-hosts Hannah Ritchie , Deputy Editor and Lead Researcher, Our World in Data @_HannahRitchie Rob Stewart , Co-founder and Director of Sustainability, Koba Subscribe to Hannah's Substack ' Sustainability by numbers ' Want to get in touch? Email solvingforclimate@gmail.com Madeleine Drury , Series Producer Transcriptions available: https://solvingforclimate.substack.com/ Co-hosts Hannah Ritchie , Deputy Editor and Lead Researcher, Our World in Data @_HannahRitchie Rob Stewart , Co-founder and Director of Sustainability, Koba Subscribe to Hannah's Substack ' Sustainability by numbers ' Want to get in touch? Email solvingforclimate@gmail.com Maddie Drury, Series Producer Hosted on Acast. See acast.com/privacy for more information.

Skyports are building the infrastructure for electric flying taxis that could change the way we travel. You might be able to ride in one in Dubai as early as next year. The CEO of Skyports joins Hannah and Rob to discuss how vertiports could change urban transport. But do their climate credentials stand up? Season two of Solving for Climate is sponsored by Xlinks xlinks.co Duncan Walker, CEO of Skyports Co-hosts Hannah Ritchie , Deputy Editor and Lead Researcher, Our World in Data @_HannahRitchie Rob Stewart , Co-founder and Director of Sustainability, Koba Subscribe to Hannah's Substack ' Sustainability by numbers ' Want to get in touch? Email solvingforclimate@gmail.com Madeleine Drury , Series Producer Transcriptions available: https://solvingforclimate.substack.com/ Co-hosts Hannah Ritchie , Deputy Editor and Lead Researcher, Our World in Data @_HannahRitchie Rob Stewart , Co-founder and Director of Sustainability, Koba Subscribe to Hannah's Substack ' Sustainability by numbers ' Want to get in touch? Email solvingforclimate@gmail.com Maddie Drury, Series Producer Hosted on Acast. See acast.com/privacy for more information.

The maritime industry is responsible for roughly 3% of global emissions. So one solution to help reduce fuel consumption has already set sail. Head of Engineering at BAR Technologies, Lauren Eatwell has steered a project called WindWings which retrofits large steel and glass sails to ships. But will the wider industry move fast enough to meet climate targets? Season two of Solving for Climate is sponsored by Xlinks xlinks.co Lauren Eatwell, Head of Engineering at BAR Technologies Co-hosts Hannah Ritchie , Deputy Editor and Lead Researcher, Our World in Data @_HannahRitchie Rob Stewart , Co-founder and Director of Sustainability, Koba Subscribe to Hannah's Substack ' Sustainability by numbers ' Want to get in touch? Email solvingforclimate@gmail.com Madeleine Drury , Series Producer Transcriptions available: https://solvingforclimate.substack.com/ Co-hosts Hannah Ritchie , Deputy Editor and Lead Researcher, Our World in Data @_HannahRitchie Rob Stewart , Co-founder and Director of Sustainability, Koba Subscribe to Hannah's Substack ' Sustainability by numbers ' Want to get in touch? Email solvingforclimate@gmail.com Maddie Drury, Series Producer Hosted on Acast. See acast.com/privacy for more information.