Nitrous oxide or N2O is the third largest source of GHG emissions behind carbon dioxide and methane. Also known as laughing gas, it’s long-lived like carbon dioxide and incredibly potent like methane. And it accounts for about 6% of global warming. So where does it come from? And what do we do about it?In this episode, Shayle talks to Eric Davidson, professor at the University of Maryland Center for Environmental Science, and principal scientist at Spark Climate Solutions. Eric studies the surprising source of nitrous oxide: bacteria in the soil. Eric and Shayle talk about topics like:  How the application of nitrogen fertilizer causes more emissions than the production of fertilizer itself The challenging economics of agriculture that cause farmers to over-apply fertilizer How precise and timely application of fertilizer could cut emissions New livestock feed additives that could replace the N2O-intensive crops in animal feed New crops that require less fertilizer Recommended Resources: Nature Climate Change: Improving the social cost of nitrous oxide The Conversation: New research: nitrous oxide emissions 300 times more powerful than CO₂ are jeopardizing Earth’s future Nature: A comprehensive quantification of global nitrous oxide sources and sinks Come watch a live episode of The Carbon Copy! Canary Media and Post Script Media are hosting a live event at Greentown Labs in Somerville, Mass. on April 6. We’ll record a live episode of The Carbon Copy with some very special guests. Get your tickets today.Catalyst is a co-production of Post Script Media and Canary Media.Catalyst is supported by Antenna Group. For 25 years, Antenna has partnered with leading clean-economy innovators to build their brands and accelerate business growth. If you're a startup, investor, enterprise, or innovation ecosystem that's creating positive change, Antenna is ready to power your impact. Visit antennagroup.com to learn more.Catalyst is supported by EnergyHub. The company’s platform lets consumers turn their smart thermostats, EVs, batteries, water heaters, and other products into virtual power plants that keep the grid stable and enable higher penetration of solar and wind power. And they are hiring! Learn more and see open roles at energyhub.com/catalystCatalyst is brought to you by Sealed: The experts in home weatherization and electrification upgrades. Sealed is leading the way, with over a decade of experience being accountable to homeowners because they only get paid based on actual energy reductions. Visit Sealed.com/measuredsavings to learn more.

Come watch a live episode of The Carbon Copy! Canary Media and Post Script Media are hosting a live event at Greentown Labs in Somerville, Ma. on April 6. record a live episode of The Carbon Copy with some very special guests. Get your tickets today.We’re bringing you a special crossover episode this week from Catalyst’s sister podcast, The Carbon Copy. I host the show and we did an episode recently about this urgent climate tech problem: America’s shortage of electricians. To decarbonize the economy, we need to electrify everything. That means installing millions of heat pumps, EV chargers, electric water heaters and rooftop solar panels. But there’s one big problem: finding enough electricians to make it happen. Electricians across the country are flooded with work — and just as demand is skyrocketing, many in the field are nearing retirement age. This week, in a special collaboration with Grist, reporter Emily Pontecorvo discusses where to find all the electricians we need to electrify everything and how we can train enough new entrants to the field to meet our climate goals. Read Emily’s feature article.Transcript available here.Recommended Resources: Canary: We need a lot more electricians if we’re going to electrify everything Canary: How to get contractors on board with heat pumps and electrification Canary: US climate law to spur thousands of new jobs in every state Catalyst is a co-production of Post Script Media and Canary Media.Catalyst is supported by Antenna Group. For 25 years, Antenna has partnered with leading clean-economy innovators to build their brands and accelerate business growth. If you're a startup, investor, enterprise, or innovation ecosystem that's creating positive change, Antenna is ready to power your impact. Visit antennagroup.com to learn more.Catalyst is supported by EnergyHub. The company’s platform lets consumers turn their smart thermostats, EVs, batteries, water heaters, and other products into virtual power plants that keep the grid stable and enable higher penetration of solar and wind power. And they are hiring! Learn more and see open roles at energyhub.com/catalystCatalyst is brought to you by Sealed: The experts in home weatherization and electrification upgrades. Sealed is leading the way, with over a decade of experience being accountable to homeowners because they only get paid based on actual energy reductions. Visit Sealed.com/measuredsavings to learn more.

Last year’s surge in oil prices brought record windfall profits for oil majors, and a boon for investors. But historic trends don’t favor fossil fuels.From 2010 to 2020, the oil & gas sector underperformed the broader S&P 500 index. The sector gained 6% over that period, while the benchmark S&P index grew 180%. Some called it a "lost decade" for fossil fuel investors.“If anything, oil's been a drag,” says Zach Stein, the co-founder and CEO of Carbon Collective, a company building climate-focused portfolios for investors and employer 401(k) plans.The recent surge for the oil and gas sector shows how fundamental fossil fuels are for today's economy. But looking forward, oil is facing the most significant competition it has ever seen, thanks to electrification and clean energy. That view of the long-term threat to fossil fuels drove Zach to co-found Carbon Collective – with a mission to build funds around industries that will deliver strong returns in a climate-constrained world.In this episode, produced with Carbon Collective, Zach Stein talks with Stephen Lacey about trends in sustainable investing – how to define the category, identify good investments, and separate it from the confusing world of ESG.If you want to invest sustainably – at work or individually – you can learn more at carboncollective.co. There, you can see how the portfolios are built and read more about the company's theory of change.

Come watch a live episode of The Carbon Copy! Canary Media and Post Script Media are hosting a live event at Greentown Labs in Somerville, Massachusetts on April 6 with some very special guests. Get your tickets today.We had so much to cover in Nat Bullard’s monster climate trends deck that we’re back for another episode. Haven’t heard the first part yet? Listen here. Nat was the chief content officer at BloombergNEF until last year. He is now a senior contributor at BNEF and Bloomberg Green as well as a venture partner at Voyager Ventures. Shayle and Nat dig into topics like: EVs. From 2017 to 2022, internal combustion engine car sales globally declined by nearly a third. Yet EV sales are on the rise. Will growth in EVs stave off the decline of passenger vehicle sales? Onshoring of supply chains. Companies have announced plans to bring manufacturing facilities to the U.S. or nearby countries. In the EV value chain alone, there were $70 billion worth of announcements in 2022. Will this onshoring trend have lasting power?  The three ages of decarbonization. First came renewable energy, then the energy transition, and starting in 2019, the net zero age. It builds on everything we did before, but now with a focus on molecules, calories, industry, and pressure on the boardroom. Plus: What we can do with old coal sites and the types of projects that tend to have cost overruns. For a full transcript, click hereRecommended resources: Nathaniel Bullard: Decarbonization: The long view, trends and transience, net zeroCatalyst is a co-production of Post Script Media and Canary Media.Catalyst is supported by Antenna Group. For 25 years, Antenna has partnered with leading clean-economy innovators to build their brands and accelerate business growth. If you're a startup, investor, enterprise, or innovation ecosystem that's creating positive change, Antenna is ready to power your impact. Visit antennagroup.com to learn more.Catalyst is supported by EnergyHub. The company’s platform lets consumers turn their smart thermostats, EVs, batteries, water heaters, and other products into virtual power plants that keep the grid stable and enable higher penetration of solar and wind power. And they are hiring! Learn more and see open roles at energyhub.com/catalystCatalyst is brought to you by Sealed: The experts in home weatherization and electrification upgrades. Sealed is leading the way, with over a decade of experience being accountable to homeowners because they only get paid based on actual energy reductions. Visit Sealed.com/measuredsavings to learn more.

It’s the first year of what we hope is an annual event: Nat Bullard has released his first climate trends report. He was the chief content officer at BloombergNEF until last year, and now is a senior contributor at BNEF and Bloomberg Green. He’s also a venture partner at Voyager Ventures. There’s so much in this 141-slide deck that we’ve split the conversation into two episodes. In this first part, Shayle and Nat dig into topics like: Land use. For example: we grow 40% of the U.S. corn to offset 10% of U.S. motor gas demand. Also, despite a growing world population, land used for agriculture globally has been shrinking. What do these trends mean for alternative proteins and sustainable aviation fuels? ESG. In 2022, there were more anti-ESG than pro-ESG regulatory developments. And while ESG fund flows were positive last year, they’re still only a fraction of their peak in 2021. Where is ESG investment heading and should we even be putting environmental, social and governance criteria in the same bucket?  Batteries. Battery costs rose in 2022, but battery system costs rose faster. And yet there’s still rising demand for utility-scale batteries. Meanwhile, the top ten battery manufacturers of 2022 were in Asia. What do these trends mean for the battery market and manufacturing supply chains? For a full transcript, click hereRecommended resources: Nathaniel Bullard: Decarbonization: The long view, trends and transience, net zero Catalyst: Climatetech’s surprising bottleneck: Land access Catalyst is a co-production of Post Script Media and Canary Media.Catalyst is supported by Antenna Group. For 25 years, Antenna has partnered with leading clean-economy innovators to build their brands and accelerate business growth. If you're a startup, investor, enterprise, or innovation ecosystem that's creating positive change, Antenna is ready to power your impact. Visit antennagroup.com to learn more.Catalyst is supported by EnergyHub. The company’s platform lets consumers turn their smart thermostats, EVs, batteries, water heaters, and other products into virtual power plants that keep the grid stable and enable higher penetration of solar and wind power. And they are hiring! Learn more and see open roles at energyhub.com/catalystCatalyst is brought to you by Sealed: The experts in home weatherization and electrification upgrades. Sealed is leading the way, with over a decade of experience being accountable to homeowners because they only get paid based on actual energy reductions. Visit Sealed.com/measuredsavings to learn more.

Recent announcements in the world of nuclear power might make you think that new nuclear technologies are close to deployment in North America. But look closely and you’ll find that progress is actually painfully slow, weighed down by regulatory challenges.Today’s guest argues that all those rules and regulations need to be overhauled.In this episode, Shayle talks to Bret Kugelmass, CEO and founder of nuclear reactor developer Last Energy. He’s also the host of the podcast Titans of Nuclear. They cover topics like: Small modular vs micro vs traditional reactors The state of SMR and nuclear development in North America Why utilities are disincentivized to build nuclear Places that are currently seeing a lot of construction, like China and Poland Building with existing components vs developing new designs The U.S. Nuclear Regulatory Commission’s certification and licensing process Overhauling the bureaucracy and the institutional design of the Commission itself Click here for a full transcript.Recommended Resources: Catalyst: Will advanced reactors solve nuclear’s problems? Canary: Small modular nuclear reactors: The race is on to actually build them Canary: A small modular nuclear reactor just got U.S. approval — a big milestone Catalyst is a co-production of Post Script Media and Canary Media.Catalyst is supported by Antenna Group. For 25 years, Antenna has partnered with leading clean-economy innovators to build their brands and accelerate business growth. If you're a startup, investor, enterprise, or innovation ecosystem that's creating positive change, Antenna is ready to power your impact. Visit antennagroup.com to learn more.Catalyst is supported by EnergyHub. The company’s platform lets consumers turn their smart thermostats, EVs, batteries, water heaters, and other products into virtual power plants that keep the grid stable and enable higher penetration of solar and wind power. And they are hiring! Learn more and see open roles at energyhub.com/catalystCatalyst is brought to you by Sealed: The experts in home weatherization and electrification upgrades. Sealed is leading the way, with over a decade of experience being accountable to homeowners because they only get paid based on actual energy reductions. Visit Sealed.com/measuredsavings to learn more.

Recent research has raised questions about the global-warming impact of uncombusted hydrogen. When it leaks from storage, pipes and other infrastructure into the atmosphere, new studies suggest hydrogen absorbs more heat than previously understood. And, perhaps more importantly, it extends the atmospheric life of methane, a potent greenhouse gas.Proponents argue that hydrogen is a critical climate solution. “Green” hydrogen, for example, is made with zero-carbon electricity, effectively turning things like solar and wind energy into a storable fuel that can replace natural gas in many end uses. But could hydrogen’s warming impacts outweigh its advantages?That depends on your assumptions about how and where we use it.In this episode, Shayle talks to Thomas Koch Blank, senior principal at RMI, where he leads the organization’s Breakthrough Technology Program. Shayle and Thomas examine the new research and discuss topics like:  Where we will use hydrogen and varying risks of leakage in those applications Poor applications for hydrogen, like turning “blue” hydrogen derived from steam methane reforming into synfuel Estimated leakage rates and the incentives for hydrogen producers to build low-leakage systems Hydrogen’s total warming impact, factoring in how much natural gas it could replace How natural gas and hydrogen compare kilogram for kilogram or megajoule for megajoule The time horizon we should use to evaluate the global warming potential of hydrogen Hydrogen leakage measurement, verification, and safety Recommended Resources: Environmental Defense Fund: Emissions of Hydrogen Could Undermine Its Climate Benefits; Warming Effects Are Two to Six Times Higher Than Previously Thought RMI: Hydrogen Reality Check #1: Hydrogen Is Not a Significant Warming Risk Columbia University’s SIPA Center on Global Energy Policy: Hydrogen Leakage: A Potential Risk for the Hydrogen Economy Click here for a full transcript.Catalyst is a co-production of Post Script Media and Canary Media.Catalyst is supported by Antenna Group. For 25 years, Antenna has partnered with leading clean-economy innovators to build their brands and accelerate business growth. If you're a startup, investor, enterprise, or innovation ecosystem that's creating positive change, Antenna is ready to power your impact. Visit antennagroup.com to learn more.Catalyst is supported by EnergyHub. The company’s platform lets consumers turn their smart thermostats, EVs, batteries, water heaters, and other products into virtual power plants that keep the grid stable and enable higher penetration of solar and wind power. And they are hiring! Learn more and see open roles at energyhub.com/catalystCatalyst is brought to you by Sealed: The experts in home weatherization and electrification upgrades. Sealed is leading the way, with over a decade of experience being accountable to homeowners because they only get paid based on actual energy reductions. Visit Sealed.com/measuredsavings to learn more.

It’s that time of year when we reach into our listener mailbag and answer your questions. And you had some good ones. In this episode, Shayle once again hands the mic to guest host Sarah Golden, VP of energy at GreenBiz Sarah Golden. Together they cover things like: The role of biology in creating fossil-fuel-free materials Whether the marginal cost of electricity is heading toward zero Solving the dilemma of financing first-of-a-kind projects The impact of tech layoffs on climatetech The biggest roadblocks to decarbonization What role battery recycling will play in addressing the shortage of lithium and other critical minerals Click here for a full transcript of this episode.What else should we cover on the show? Leave us a voicemail at 919-808-5832. Or email us at catalyst@postscriptaudio.com. You can also tag us on Twitter.Catalyst is a co-production of Post Script Media and Canary Media.Catalyst is supported by Antenna Group. For 25 years, Antenna has partnered with leading clean-economy innovators to build their brands and accelerate business growth. If you're a startup, investor, enterprise, or innovation ecosystem that's creating positive change, Antenna is ready to power your impact. Visit antennagroup.com to learn more.

Here’s the dream: millions of controllable devices—from EV chargers to thermostats, fridges, and batteries—working together to inject power back into the grid. They reduce load when there’s not enough electricity supply to meet demand. They ease transmission congestion and maintain grid frequency. And these devices, collectively called distributed energy resources or DERs, are all controlled remotely by grid operators. So how far are we from this dream? In this episode, Shayle talks to Mathew Sachs, senior vice president for strategic planning and business development at CPower, a company that aggregates DERs and sells DER services to the grid. They talk about where we are on the long and winding path to large-scale deployment of DERs and what it takes to monetize them. They dig in on:  EV chargers, the fastest growing category of DERs, as well as V1G and V2G How much easier it is to share your financial data with a credit check than to share your energy data with a DER aggregator How current rules create obstacles to monetizing DERs Federal Energy Regulatory Commission (FERC) Order 2222 and the status of new DER rules in NYISO and CAISO Positive developments like the declining costs of DERs and rising watts per customer acquired Full transcript hereRecommended Resources: Canary: FERC Order 2222: Experts offer cheers and jeers for first round of filings Canary: Is ​‘vehicle-to-everything’ charging ready for prime time? Catalyst: Tapping the gold mine of consumer energy data Catalyst is a co-production of Post Script Media and Canary Media.Catalyst is supported by Antenna Group. For 25 years, Antenna has partnered with leading clean-economy innovators to build their brands and accelerate business growth. If you're a startup, investor, enterprise, or innovation ecosystem that's creating positive change, Antenna is ready to power your impact. Visit antennagroup.com to learn more.

In the U.S. alone, food waste is responsible for the equivalent emissions from 42 coal power plants. Globally it accounts for 10% of greenhouse gases, more than heavy industries like cement and steel. Why? Wasted food means wasted energy. Throwing a piece of food in the trash is like tossing out the fertilizer and fuel used to make it, too. And we waste a lot of it. Nearly one third of all food grown gets trashed. On top of that, when food decomposes in landfills through anaerobic digestion, it releases methane, a potent greenhouse gas. So how do we clean up food waste? In this episode, Shayle talks to Matt Rogers, founder and CEO of Mill. Matt founded Nest, the smart thermostat company, and has now turned his attention to food. Disclosure: Shayle’s venture capital firm Energy Impact Partners is an investor in Mill. Matt and Shayle cover topics like: Where food waste occurs along the value chain (hint: The biggest source of waste is us, when we toss food we’ve already purchased.) The causes of emissions, from energy inputs to anaerobic digestion in landfills The current solutions to food waste, such as composting, green bin programs, supply chain management software and shelf-life extension. The challenges with landfills, including trucking waste and landfill capacity. Mill’s new consumer-focused food waste technology, which includes shipping dehydrated food scraps in the mail. How much consumers care about food waste and carbon emissions. Recommended Resources: ReFED: Drawdown Update Affirms Reducing Food Waste as a Leading Solution to Climate Change ReFED: Roadmap to 2030: Reducing US Food Waste by 50% Canary: Eating the Earth | Decarbonizing our food systems Climavores: Today's food crisis is a postcard from our warming future EPA: From Farm to Kitchen: The Environmental Impacts of U.S. Food Waste Click here for a full transcriptCatalyst is a co-production of Post Script Media and Canary Media.Catalyst is supported by Antenna Group. For 25 years, Antenna has partnered with leading clean-economy innovators to build their brands and accelerate business growth. If you're a startup, investor, enterprise, or innovation ecosystem that's creating positive change, Antenna is ready to power your impact. Visit antennagroup.com to learn more.