greenhouse gases

Agriculture in the U.S. produces more methane than the American oil and gas industry, and the biggest share of that agricultural methane is from enteric fermentation – essentially cow burps. Cows and other ruminant animals release methane because of the way they digest food. And as animal protein consumption rises, so will enteric emissions. It’s a problem for climate change, but also for farmers. Methane is wasted energy that could have been used for beef or dairy production – and so enteric methane production is a challenge that researchers have been trying to solve for years. Some promising solutions are starting to make it into practice. In this episode, Shayle talks to Charles Brooke, program manager for enteric methane at Spark Climate Solutions. Shayle and Charles cover topics like: Why most enteric methane comes from small-holder pasture-raised animals, instead of feed-lot-raised animals. The different solutions in the pipeline, such as better livestock management, feed additives, vaccines, and breeding. The challenges with feed additives that animals must eat everyday, like bromoform, Bovaer, and 3-NOP. How vaccines and breeding could shift global populations more permanently. The barriers to adoption, such as regulatory hurdles and public skepticism. Recommended Resources: Federation of American Scientists: Climate-Smart Cattle: US Research and Development Will Improve Animal Productivity, Address Greenhouse Gases, and Hasten Additional Market Solutions USAID: Endline Methane Assessment of KCDMS Dairy and Fodder Value Chain Activities in Kenya Food Climate Research Network: Grazed and Confused  American Society for Microbiology: The Role of microbes in Mediating Climate Change Environmental Defense Fund: Tackling Enteric Methane 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.

Today we’re talking about two climate blind spots: methane and short-term warming. Most of us think of global warming as a long game. How do we reach net zero by 2050? And how should we curb carbon dioxide emissions to get there? But the warming happening now and in the next few years is just as important. Short-term warming exacerbates wildfires, hurricanes and other climate impacts now. And the short-term trajectory of warming can make things better or worse in the long run. At some point before we reach net zero emissions, it’s increasingly likely that we will overshoot our 1.5 degree target. Hopefully we will come back down, but the more we overshoot, the worse the effects of climate change will be. Which is why we should bend the curve of that trajectory by tackling the causes of short-term warming. High up on that list is methane. It lives in the atmosphere for only 12 years, but in the 20 years after it reaches the atmosphere it causes about 84 times more warming than carbon dioxide. That means it’s also a powerful solution. Methane in the atmosphere right now causes about 30% of global warming to date, but cutting emissions now would actually have a cooling effect. Why? Because, unlike carbon dioxide which lasts for several hundred years, methane breaks down relatively quickly.  So how do we tackle the methane problem? In this episode, Shayle talks to Erika Reinhardt, co-founder of Spark Climate Solutions, a non-profit focused on under-addressed climate solutions. Right now Spark is focusing on methane emissions from livestock, also known as enteric methane. Shayle and Erika cover topics like: Why we should consider different time-scale standards for measuring global warming impact, such as GWP100 and GWP20 How short-lived aerosols mask the full warming impact of greenhouse gasses Methane removal, including the process of oxidation and methane sinks Different sources of methane, such as wetlands, livestock and fossil fuel production Ready-to-deploy solutions to fossil fuel methane emissions, such as flaring, detection, capture and storage How flaring may be less effective than previously thought Solutions under development for livestock methane, such as manure management, biogas digesters and feed additives like seaweed-derived bromoform  Recommended Resources: Canary: Cutting methane emissions could make a big dent in climate change, major UN report says Bloomberg: As Gas Prices Soar, Nobody Knows How Much Methane Is Leaking Inside Climate News: Feeding Cows Seaweed Reduces Their Methane Emissions, but California Farms Are a Long Way From Scaling Up the Practice Catalyst is a co-production of Post Script Media and Canary Media. Catalyst is supported by Scale Microgrid Solutions, your comprehensive source for all distributed energy financing. Distributed generation can be complex. Scale makes financing it easy. Visit scalecapitalsolutions.com to learn more. Catalyst is supported by CohnReznick, a trusted partner for navigating the complex and evolving financial, tax and regulatory landscape of the renewable sector. Visit cohnreznick.com to learn more.

The $369 billion climate and tax bill from Sen. Joe Manchin III and Senate Majority Leader Chuck Schumer caught everyone by surprise. Democrats had abandoned their climate legislation last month after Manchin, a must-have vote for Democrats, signaled his opposition to it. But late last week Manchin and Schumer announced they had revived the deal under a new name – The Inflation Reduction Act of 2022. If passed, it would be the most ambitious climate action in U.S. history. And now with support from another key swing vote, Sen. Kyrsten Sinema, the bill is an important step closer to passage. So what would the bill do? In this episode, Shayle talks to Princeton professor Jesse Jenkins. Jesse leads the REPEAT Project, which analyzed the effects of the bill in a report released today. Overall, the bill would make clean energy cheaper and build up the capacity of climatetech industries in the U.S. and its allies across multiple sectors of the economy, including power, transportation, heavy industry and buildings.  Shayle and Jesse walk through the key provisions in the proposed legislation and their predicted impacts, including: Hundreds of new gigawatts of solar and wind capacity, plus new technology-neutral tax credits to support other technologies such as advanced nuclear Building up a North American supply chain for electric vehicles (EVs) Reducing the costs of EVs, sustainable aviation fuels, energy storage, hydrogen and more Increased energy security for medium- and low-income households, such as installing heat pumps and insulation 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. Solar Power International and Energy Storage International are returning in-person this year as part of RE+. Come join everyone in Anaheim for the largest, B2B clean energy event in North America. Catalyst listeners can receive 15% off a full conference, non-member pass using promo code CANARY15. Register here.

Host Emily Kwong wants to keep an eye on her carbon footprint. Most of it consists of greenhouse gas emissions from driving her car or buying meat at the grocery store. But it's not so obvious how to measure those emissions, or how factories, cargo ships, or even whole countries measure theirs.

Enter: NPR science reporter Rebecca Hersher. Together, Rebecca and Emily break down how greenhouse gas emissions are tallied ... and why those measurements are so important in figuring out who's responsible for cleaning up.

What should we measure next? Email the show at shortwave@npr.org.

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