TILclimate

Deep beneath the Earth’s surface, a molten stew of metals radiates vast amounts of energy. Prof. Roland Horne, Director of the Stanford Geothermal Program, joins TILclimate to talk about the “geothermal energy” technologies that tap this underground resource for electricity, manufacturing, and home heating and cooling. He also shares the recent breakthroughs that have begun bringing this always-on, clean, renewable source of energy to new places and applications.

For a deeper dive and additional resources related to this episode, visit: https://climate.mit.edu/podcasts/e5-geothermal-earths-infinite-clean-power

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Modern buildings are complex machines, using heating, cooling and a host of other appliances to turn energy into comfort. But that energy comes with a cost: today, our buildings do more to warm the climate than heavy industry, agriculture, or transportation. Prof. Tarek Rakha provides an architect’s view of buildings and the climate, sharing how we can build anew—and upgrade our existing buildings—to use less energy, lower our living costs, benefit the climate, and live more comfortably, all at the same time.

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A new type of climate science is allowing us to draw clearer connections between our warming planet, and the extreme weather events this warming creates. Thanks to “climate change attribution,” scientists can now say confidently when climate change has made a heatwave or hurricane more likely, and by how much. Dr. Andrew Pershing explains how attribution science works, and why this information is useful for understanding and adapting to a warming world.

For a deeper dive and additional resources related to this episode, visit: https://climate.mit.edu/podcasts/e3-did-climate-change-do

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The Earth has gone through massive climate change before—many times over, in fact!—but human civilization has not. Prof. David McGee, a specialist in the study of ancient climates, joins the show to explain what came before the 10,000 years of global stability in which complex human societies emerged and grew. Along the way, we explore the scientific tools used to study the distant past, the great cycles of the ice ages, and what it can all tell us about the climate change we’re experiencing today.

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The way we grow and distribute food today is deeply dependent on fossil fuels, yet that dependence can feel invisible. Sustainable food systems researcher Prof. Jennifer Clapp joins the show to walk us through all the ways fossil fuels are used to produce one simple food item: a tortilla chip. Along the way, we’ll explore the hard work being done to eliminate climate pollution from the food we eat.

For a deeper dive and additional resources related to this episode, visit: https://climate.mit.edu/podcasts/e1-farm-table-side-fossil-fuels

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The landmark Paris Agreement of 2015 gave the world a shared target for halting climate change: that global warming should stop well short of 2 degrees Celsius. But how did that target come about, and what exactly does it mean? Prof. Maria Ivanova, a specialist in international environmental policy, shares with us the history and diplomacy behind those crucial 2 degrees.

For a deeper dive and additional resources related to this episode, visit: 

For more episodes of TILclimate by the MIT Environmental Solutions Initiative, visit tilclimate.mit.edu. 

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The Earth naturally absorbs some of our climate pollution from burning fossil fuels. But how much, and how fast? Geophysicist Prof. Daniel Rothman joins the podcast to explain the nature and scale of the natural carbon cycle, and how our appetite for fossil fuels has pushed it out of balance.

For a deeper dive and additional resources related to this episode, visit: 

For more episodes of TILclimate by the MIT Environmental Solutions Initiative, visit tilclimate.mit.edu. 

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Laur Hesse Fisher, Host and Executive Producer

David Lishansky, Editor and Pr...

Today, companies are storing millions of tons of carbon dioxide underground every year to prevent this climate pollution from warming the planet. In the future it might be billions of tons. But is it dangerous to pump so much liquefied carbon below our feet? Geologist and carbon storage expert Prof. Bradford Hager joins the podcast to explain the risks and how to avoid them.

For a deeper dive and additional resources related to this episode, visit: 

For more episodes of TILclimate by the MIT Environmental Solutions Initiative, visit tilclimate.mit.edu. 

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What if there was a way to continue using fossil fuels for energy without emitting CO2 into the atmosphere? To prepare for a new listener question about carbon capture, we're re-airing this season two episode in which Dr. Howard Herzog and Professor Brad Hager talk about capturing, using, and storing carbon emissions, and how it fits into a clean energy future.

Is hydrogen fuel a climate solution? That depends on how you produce it. Dr. Emre Gençer of the MIT Energy Initiative takes us on a tour of the hydrogen spectrum, from climate-polluting “gray” hydrogen made from natural gas to the much more promising “green” hydrogen made with renewable electricity.

For a deeper dive and additional resources related to this episode, visit: 

For more episodes of TILclimate by the MIT Environmental Solutions Initiative, visit tilclimate.mit.edu. 

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Laur Hesse Fisher, Host and Executive Producer

David Lishansky, Editor and Producer

Just 20 years ago, hydrogen cars and battery electric cars were pretty evenly matched as clean alternatives to gas-powered vehicles. But today, batteries are way ahead: the big car companies are rapidly electrifying their lineups, while only a few hydrogen cars are available. What happened? Sergey Paltsev, senior research scientist at the MIT Energy Initiative, helps TILclimate answer this listener question. 

For a deeper dive and additional resources related to this episode, visit: 

For more episodes of TILclimate by the MIT Environmental Solutions Initiative, visit tilclimate.mit.edu. 

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Hydrogen gas acts like a fossil fuel, but with no carbon emissions. Is it the silver bullet we’ve been waiting for? To prepare for some new listener questions about hydrogen energy, we're re-airing this season four episode in which Prof. Svetlana Ikonnikova of the Technical University of Munich explains how hydrogen works and its potential in the energy transition.

For a deeper dive and additional resources related to this episode, visit:  https://climate.mit.edu/podcasts/e4-introduction-hydrogen-energy-re-air

For more episodes of TILclimate by the MIT Environmental Solutions Initiative, visit tilclimate.mit.edu. 

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Wind power is the largest source of clean, renewable energy in the United States. But the large turbines that create that power can endanger wildlife. MIT Professor Michael Howland returns to the podcast to answer a listener's question about the risks of wind energy to birds—and explain how wind turbines compare to coal plants, power lines, office towers, housecats, and other threats to birdlife in the modern world.

For a deeper dive and additional resources related to this episode, visit: 

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You might have heard how wind turbines failed in Texas during a terrible cold front in 2021. Does this mean we can’t rely on this clean, renewable source of energy when the weather turns extreme? MIT Professor Michael Howland joins the podcast to explain how wind turbine operators prepare for frigid conditions, and why some turbines failed in Texas while others are working fine in Antarctica.

For a deeper dive and additional resources related to this episode, visit: 

For more episodes of TILclimate by the MIT Environmental Solutions Initiative, visit tilclimate.mit.edu. 

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Plants take in CO2 from the air to grow—and today’s atmosphere has about 50% more CO2 than it did before we started burning massive amounts of fossil fuels. So, is that great news for plants? Prof. David Des Marais, a plant ecologist at MIT, helps answer this listener question.

For a deeper dive and additional resources related to this episode, visit: 

For more episodes of TILclimate by the MIT Environmental Solutions Initiative, visit tilclimate.mit.edu. 

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Laur Hesse Fisher, Host and Executive Producer

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The sixth season of Today I Learned: Climate is coming in two weeks, and this time we’re doing something a little different. People all around the world write into our team with questions about climate change. So this season, we’re working with scientists and experts at MIT and beyond, to answer those questions in language we can all understand.

The United States has a goal to power the country with 100% clean electricity by 2035. Unfortunately, our energy regulations are not set up to make this much change this quickly. Energy economist John Parsons of MIT joins the show to explain how much clean energy infrastructure we need to build, the obstacles to building it, and reform ideas to transform our energy system on the timeline our climate goals demand.

For a deeper dive and additional resources related to this episode, visit: https://climate.mit.edu/podcasts/e8-why-does-it-take-five-years-build-wind-farm

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The large majority of new energy we’re building today comes from clean, renewable wind and solar projects. But to keep building wind and solar at this pace, we need energy storage: technologies that save energy when the weather is favorable, and use it when wind and sun are scarce. Prof. Asegun Henry joins TILclimate to explain how energy storage works, what storage technologies are out there, and how much we need to build to make wind and solar dominant.

For a deeper dive and additional resources related to this episode, visit: https://climate.mit.edu/podcasts/e7...

We all want to live full, healthy lives. But climate change is threatening a growing number of people’s lives and well-being. Amruta Nori-Sarma, assistant professor of environmental health at Boston University School of Public Health, joins the show to help us see climate change not in tons of carbon dioxide, but as a matter of health.

For a deeper dive and additional resources related to this episode, visit: https://climate.mit.edu/podcasts/e6-public-health-experts-guide-climate-change

For more episodes of TILclimate by the MIT Environmental Solutions Initiative, visit tilclimate.mit.edu. 

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We were going to produce an episode on El Niño, and its relationship to climate change. And then we found out that Outside/In, from New Hampshire Public Radio, already did that. And they did a really good job. So please enjoy this episode of Outside/In, where you'll learn what El Niño is, how to tell if extreme weather events are caused by climate change or by El Niño, and what the powerful El Niño event of 2023 can tell us about our climate future.

Outside/In is a production of NHPR, New Hamp...

If you live in the U.S. Mountain West, the Pacific Coast of the Americas, or large parts of Australia or southern Europe, there’s a good chance a major wildfire has passed near you in the last five or six years—maybe one more intense than anything you’ve ever heard of in your area. But why exactly are wildfires getting worse? Is climate change entirely to blame? And what should we be preparing for next? Dr. Daniel Swain joins the TILclimate podcast to help break down what is going on with wildfires and climate change.  

For a de...

Today we’re talking about desalination: turning saltwater into freshwater, so we can drink it or use it to grow crops. And we’re talking about this because, in many parts of the world, freshwater is getting harder to come by. So… is converting saltwater a good solution? Our guest Prof. John Leinhard has devoted his whole career to this question—and its relationship with climate change.

For a deeper dive and additional resources related to this episode, visit: https://climate.mit.edu/podcasts/e4-can-desalination-solve-water-scarcity

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Refrigerants are in every refrigerator, freezer and air conditioner, and the world is on track to make a lot more of them in the years to come. They’re also powerful greenhouse gases: often thousands of times more warming than carbon dioxide. Prof. Ronald Prinn, an expert in the physics and chemistry of our climate system, joins TILclimate to discuss the past, present and future of how these chemicals affect our planet.

For a deeper dive and additional resources related to this episode, visit: https://climate.mit.edu/podcasts/e3-dont-throw-away-your-refrigerator

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Carbon dioxide—CO2—is the greenhouse gas you’ve probably heard most about, on this podcast and elsewhere. But it turns out, methane is an incredibly important greenhouse gas too. Stopping methane emissions today is a powerful way to dampen climate change in the very near term—to keep the Earth cooler in the next 10 or 20 years. So today, Prof. Desiree Plata returns to TILclimate to tell us—how do we get that done?

For a deeper dive and additional resources related to this episode, visit: https://climate.mit.edu/podcasts/e2-how-tackling-methane-cools-planet-fast

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You probably know that today’s climate change is caused by certain gases—what scientists call greenhouse gases—that human activity has been adding to our atmosphere. But—how do these gases actually keep heat from escaping into space? And why these gases in particular? To help answer these questions, we invited Desiree Plata, an associate professor in the Department of Civil and Environmental Engineering at MIT and the director of the MIT Methane Network.

For a deeper dive and additional resources related to this episode, visit: https://climate.mit.edu/podcasts/wait-how-do-greenhouse-gases-actually-warm-planet

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This is MIT’s climate change podcast, Today I Learned: Climate. If you're looking to get smart quick on climate change – without the jargon and without the politicking – this podcast is for you! In each episode, we work with experts at MIT and beyond to explain climate change science and solutions in fifteen minutes or less.

On October 5, TILclimate is returning for our fifth season! 

We’ll give you the straight answers to things like:

On August 16, 2022, President Joe Biden signed into law the Inflation Reduction Act (IRA). It was the largest of three bills signed over the course of 10 months that together make up the United States’ largest investment in addressing climate change… well, ever. Dr. Liz Reynolds, lecturer in MIT's Department of Urban Studies and Planning and former Special Assistant to the President for Manufacturing and Economic Development at the National Economic Council at the White House, joins the TILclimate podcast to help us see the big picture of what these bills are trying to accomplish.

For a deeper dive and...

On Wednesday, April 19, TILclimate will host its first live event at the MIT Museum in Cambridge, Massachusetts! Reserve your seat at tilclimate.org to watch a live recording and join the questions as your host Laur Hesse Fisher sits down with MIT lecturer and former Special Assistant to the President for Manufacturing and Economic Development Dr. Elisabeth Reynolds about “America’s big year of climate action” and the course set for U.S. climate policy in 2021-22.

We often hear about recycling as a way to make an impact on climate change right in your own home. But how big a difference are we really making when we recycle? For this episode, Anders Damgaard, senior researcher at the Technical University of Denmark, joins the TILclimate podcast to help us understand the climate benefits of recycling—and why they depend on what we’re recycling and how.

For a deeper dive and additional resources related to this episode, visit: https://climate.mit.edu/podcasts/til-about-recycling

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Winters are warming faster than any other season here in the U.S. So why are some winter storms getting even more intense? Today, we’re going to explore the connections between climate change and extreme winter weather. For this episode, we sat down with atmospheric science expert Dr. Jennifer Francis of the Woodwell Climate Research Center.

Dr. Jennifer Francis is a senior scientist at the Woodwell Climate Research Center, and her research is focused on the rapidly changing Arctic. This work engages in why change is occurring, how those changes are affecting the Arctic as well as...

What if you could pay someone else to cancel out your carbon emissions? As countries, organizations, and even individuals around the world commit to lowering their impact on the climate, many have been doing just that. So today, we’re going to look at how “carbon offsets” work and whether they are an effective tool for slowing climate change. For this episode, we sat down with carbon trading and offsets expert Dr. Barbara Haya from the University of California Berkeley. 

Dr. Barbara Haya is a Research Fellow at the Goldman School of Public Policy at the University of Cali...

Roughly ten percent of the world’s CO2 emissions come from passenger vehicles: cars, pickups, motorcycles, buses, and taxis. So today, we’re going to zoom in on how people get around every day and what to consider when thinking about reducing carbon emissions from everyday travel. For this episode, we sat down with our former MIT colleague and transportation expert Dr. Joanna Moody.

For a deeper dive and additional resources related to this episode, visit: https://climate.mit.edu/podcasts/til-about-mobility

For more episodes of TILclimate by the MIT Environmental Solutions Initiative, visit tilclimate.mit...

Electric vehicles (EVs) are being touted as a major solution to climate change. But why is that? How do they work and what kinds of changes are needed as more EVs hit the road? To dig into this, we brought in MIT Sloan Prof. David Keith, who studies transportation technology. 

For a deeper dive and additional resources related to this episode, visit: https://climate.mit.edu/podcasts/til-about-electric-cars

For more episodes of TILclimate by the MIT Environmental Solutions Initiative, visit tilclimate.mit.edu. 

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Laur Hesse Fisher, Host and Producer

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Hydrogen gas acts like a fossil fuel, but with no carbon emissions. Is it the silver bullet we’ve been waiting for? Prof. Svetlana Ikonnikova of the Technical University of Munich joins us to bring light to how hydrogen works and its potential in the energy transition.

For a deeper dive and additional resources related to this episode, visit: https://climate.mit.edu/podcasts/til-about-hydrogen

For more episodes of TILclimate by the MIT Environmental Solutions Initiative, visit tilclimate.mit.edu. 

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Laur Hesse Fisher, Host and Producer

Davi...

The ocean is a critical piece of the climate change puzzle. It's estimated that the ocean has absorbed about one third of the excess CO2 humans have added to the atmosphere and more than 90% of trapped heat in the atmosphere. So, today, we’re going underwater to talk about the ocean and climate change with renowned oceanographer Dr. Sylvia Earle.

For a deeper dive and additional resources related to this episode, visit: https://climate.mit.edu/podcasts/til-about-the-ocean

For more episodes of TILclimate by the MIT Environmental Solutions Initiative, visit tilclimate.mit.edu. 

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The ocean is a critical piece of the climate change puzzle. It's estimated that the ocean has absorbed about one third of the excess CO2 humans have added to the atmosphere and more than 90% of trapped heat in the atmosphere. So, today, we’re going underwater to talk about the ocean and climate change with renowned oceanographer Dr. Sylvia Earle.

For a deeper dive and additional resources related to this episode, visit: https://climate.mit.edu/podcasts/til-about-the-ocean

For more episodes of TILclimate by the MIT Environmental Solutions Initiative, visit tilclimate.mit.edu. 

Cre...

At MIT, we have a commitment to sharing what we know about climate change. That’s why, this summer, we’ll be back soon with a fourth season of TILclimate, bringing you new episodes that dive into even more climate topics, like the role the ocean plays in our climate, solutions for reducing transportation emissions, the future of hydrogen energy, and a whole lot more. All around 10-15 minutes, with real scientists and experts.

For more episodes of TILclimate by the MIT Environmental Solutions Initiative, visit tilclimate.mit.edu. 

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Today’s episode is about the money of climate change. When people talk about how much it costs to stop climate change, what are we paying for? And who’s paying, exactly? And if we don’t pay to stop climate change – how much will that cost us? To answer these questions, we spoke with Dr. Barbara Buchner from the Climate Policy Initiative.

For a deeper dive and additional resources related to this episode, visit: https://climate.mit.edu/podcasts/til-what-it-costs

For more episodes of TILclimate by the MIT Environmental Solutions Initiative, visit tilclimate.mit.edu. 

Today we bring climate change to the dining room table. In this episode, we reinvited Dr. Cynthia Rosenzweig onto the TILclimate podcast to tell us just a little more about the connections between the food we eat and climate change.

For a deeper dive and additional resources related to this episode, visit: https://climate.mit.edu/podcasts/til-about-what-I-eat

For more episodes of TILclimate by the MIT Environmental Solutions Initiative, visit tilclimate.mit.edu. 

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Laur Hesse Fisher, Host and Producer

David Lishansky, Editor and Producer

Aaron Krol, A...

Over the last fifty years, our world has made remarkable progress in reducing hunger around the world. How can we keep our farms and food system resilient in a warming climate? Dr. Cynthia Rosenzweig, Senior Research Scientist at the NASA Goddard Institute for Space Studies, joins host Laur Hesse Fisher on this episode of TILclimate to explain how climate change is already impacting our global food system.

For a deeper dive and additional resources related to this episode, visit: https://climate.mit.edu/podcasts/til-about-farming-a-warmer-planet

For more episodes of TILclimate by the MIT Environmental Solutions...