In Australia, one in three homes hosts a rooftop solar system. And 20% of those systems are attached to batteries. In February, a major grid outage put those systems to the test. Extreme weather caused a series of grid failures in the state of Victoria. And with coal plants tripping offline, solar capacity helped keep the blackouts from cascading further. So what does the incident tell us about how solar PV can help grid operators during times of stress? And will policies finally catch up to rea...
Apr 12, 2024•12 min
There are two critical ingredients fueling the AI boom: energy and chips. And NVIDIA, one of the most important companies in AI, is looking to be a power player in both. NVIDIA was founded in the early 1990s as a chip maker for gaming. It has since evolved into a $2 trillion behemoth building the most sought-after graphics processing units for training AI. Now, the company is making moves to deploy its technology in equipment at the edge of the grid – and looking to build a framework for deployi...
Mar 22, 2024•16 min
The US green hydrogen industry is at a critical juncture. After months of input and debate, the government put out draft rules for tax credits at the end of last year – setting firm requirements for matching new, local renewables to hydrogen production. It was seen by many as a big step for ensuring that green hydrogen is actually green. But across the industry, the reaction was more mixed – even among those who want to make the industry as clean as possible. Many projects have already been canc...
Mar 21, 2024•18 min
Data center energy use is spiking around the world. The International Energy Agency says that demand could double in the next two years, as artificial intelligence workloads soar. This increase in demand is alarming environmentalists and clean power advocates, who say AI is making decarbonization harder. But many experts in the data center industry see it differently. They say data centers are actually an energy efficiency success story – and that the benefits of AI in the power sector will far ...
Feb 28, 2024•9 min
As cities around the U.S. ramp up their renewable energy goals, they’re sometimes at odds with the utilities that serve them. Some have tried to break away and form their own utilities. Others are creating community choice aggregators to negotiate clean power supply for residents. The city of Ann Arbor is trying something different – building microgrid projects to serve local load without the help of the utility. The effort could be costly, contentious, and complicated. But if it works, it could...
Feb 26, 2024•9 min
We have 60 gigawatts of virtual power plant capacity in the US. But that needs to triple in the next decade to support a zero-carbon grid – while also meeting a surge in peak demand. There are lots of different models for building VPPs that link together solar, batteries, EV chargers, and smart thermostats. Sunrun and PG&E tested a model this summer that uses solar and batteries to create a “permanent load shift” to offset the evening peak in California. It provided tens of megawatts of capa...
Feb 20, 2024•10 min
Wind and solar projects are relatively simple to build compared with thermal power plants. But there’s a lot of technological innovation going into how those renewable plants are designed, constructed and optimized – driven by robots, artificial intelligence, and data science. Can these technologies help offset higher labor costs, rising financing costs, and supply chain constraints? In this edition: Editor Lisa Martine Jenkins presents a story from the pages of Latitude Media called on how the ...
Jan 26, 2024•9 min
The world needs a lot of critical minerals. By the middle of the century, we could be looking at a six-fold increase in demand for lithium, copper, cobalt, nickel, and magnesium to make enough batteries and renewables to decarbonize the global economy. That means a lot of mining. And it also means we need a lot of geologists to help find new resources. But will a looming shortage of geologists in the US put supply security at risk? In this edition: Editor Lisa Martine Jenkins presents a story fr...
Jan 25, 2024•10 min
Elon Musk has called lithium “the new oil.” Demand for critical minerals is booming alongside the surge in global battery production. And countries are racing to control as much mining and processing of lithium, cobalt, nickel, manganese, and graphite quickly as possible. There’s also a race among companies that are exploring artificial intelligence to discover new deposits of critical minerals. It’s yet another area where AI could speed up the energy transition. Can it help meet tight deadlines...
Jan 02, 2024•8 min
It’s been another tumultuous year for the clean energy sector in the stock market. Even with strong tailwinds from the Inflation Reduction Act, many public companies took a hit this year – thanks to investor concerns over high interest rates, supply chain constraints, uncertainty over policy implementation, and a rush back into oil & gas stocks. So what does it mean for cleantech investors in 2024? Today: Editor Lisa Martine Jenkins presents a story from the pages of Latitude Media called “ ...
Dec 21, 2023•9 min
America’s first commercial plant for capturing CO2 directly from the air is online. It marks the start of an industrial race in direct-air capture – or DAC – an industry that needs to succeed in tandem with a tripling of clean generation to slash global emissions. The US has emerged as a leader in the promotion of DAC in the hopes of radically dropping costs. And the success of this new plant will be an important indicator of the economic and technical path ahead. So, how will it work? Today: Ed...
Dec 15, 2023•10 min
The concentrating solar power industry – also known as solar thermal – has been defined by bankruptcies, failed projects, and high costs. But is it finding new life? Crystalline silicon photovoltaics won the race for solar power generation long ago. But there’s a vital market it can’t serve cheaply: industrial steam. And now out of bankruptcy, GlassPoint is hoping that solar thermal can find a competitive edge in the massive market for heat. Today: Editor Lisa Martine Jenkins presents a story fr...
Dec 13, 2023•8 min
Transmission backlogs. Land constraints. Local pushback. They’re all causing headaches for developers of wind, solar, and battery projects. And that’s making brownfields more attractive for renewables – and a range of novel, industrial-scale storage and carbon-removal projects. An Italian company is planning a compressed carbon dioxide storage project on the site of an old coal plant in the Midwest. It’s a first-of-a-kind. And it may offer a pathway for the hundreds of gigawatts of long-duration...
Nov 15, 2023•12 min
The market for engineered carbon removal is starting to resemble, well, a real market. Tax credits. Billions in government support. Corporate buyers. A wide range of startups that are picking up investment and working toward commercial deployment. They’re all helping push forward the use of machines to remove carbon from the atmosphere. But the path to gigaton scale is not yet clear. And there’s a big gap between promises and reality. Today: Editor Lisa Martine Jenkins presents a story from staf...
Nov 08, 2023•11 min
Green hydrogen is a critical resource for cleaning up industry and heavy trucking. With tens of billions of government and corporate dollars plowing into the space – electrolyzer companies are preparing for a ramp up in sales and project developments to help turn renewable electrons into hydrogen molecules. But they’re also hitting a snag: without much demand for more expensive green hydrogen, electrolyzer makers are caught in a holding pattern. So when will the market break open? Today: Editor ...
Nov 01, 2023•12 min
Top tech companies are on a quest to run their massive data centers around the clock with clean power. It’s not an easy task, but they’ve been making progress. The energy efficiency of large data centers has radically improved over the last two decades. And tech players have been buying renewables at breakneck speed. But a new source of computational demand is complicating those efforts: artificial intelligence. Today: Editor Lisa Martine Jenkins presents a story from writer Erin Wong called, “T...
Oct 25, 2023•11 min
Electric grids are increasingly being saturated with weather-dependent renewables. At the same time, power systems are also getting challenged by intensifying and unpredictable extreme weather. So can weather prediction models rise to the challenge? The answer may be in machine learning. Today: how artificial intelligence could make weather modeling much more powerful – and limit the use of fossil fuels as a backup to renewables. Latitude Media Editor Lisa Martine Jenkins brings us a story title...
Oct 18, 2023•9 min
Renewables are now super cheap and abundant. We could install nearly a half terawatt of new wind and solar capacity this year – more than the entire capacity of China. But with that surge comes a set of very pointed questions: what do we do with all those clean electrons on grids that don’t always value them – and can’t always handle them? Today: how to make good use of all the new renewable electrons hitting the grid. Latitude Media Editor Lisa Martine Jenkins brings us a story titled, “The exc...
Oct 16, 2023•17 min
Hi Climavores listeners: we're announcing a change to this feed. Going forward, this show will be called The Latitude . Solar, wind, and batteries have all surged around the world. We’re set to install 400 gigawatts of renewables in the next five years — equivalent to the capacity of China. But emissions still have not peaked globally. This leaves us with an obvious question: what are the new frontiers of technology that will reverse this trend at the speed needed? Covering this frontier of clim...
Sep 29, 2023•3 min
In this last episode of the season, Tamar and Mike discuss what they’ve learned over the past six months and debate whether there’s hope for solving the food and climate problem (spoiler alert: they both say, “Yes, if….). They discuss techno optimists who see the rise in food and ag tech innovations as an overall win for the climate, but admit that technology can only slow climate change if people embrace it. In this episode, Mike and Tamar weigh in on a recent Bloomberg article titled “Fake Mea...
Feb 07, 2023•39 min
Wheat feeds billions but it has some big climate problems. Wheat production degrades the soil, which releases carbon. It also requires a lot of land. That means clearing land—often forest—to make room for it, which also releases carbon. Plus, wheat harms ecosystems: fertilizer runoff causes water pollution, and monoculture hurts biodiversity. One alternative? Kernza. Developed over decades by the Land Institute , it’s a perennial relative of wheat that sequesters carbon with its massive root sys...
Jan 24, 2023•42 min
It’s no secret that chocolate is a sweet loved by pretty much everyone (well, everyone except Tamar). Here in the states, the average American eats about 12 pounds of chocolate a year, and worldwide we eat eight million tons of it annually. Unfortunately, our obsession with chocolate comes with a high carbon footprint. It also often creates terrible labor conditions for the communities who cultivate it. This week, Mike and Tamar speak with Rowan Jacobsen — author, journalist, and host of the pod...
Jan 17, 2023•52 min
It’s a new year, and that means a new stream of voicemails filling up our listener hotline. This week Mike and Tamar kick things off by answering questions about the impact of food packaging, the scope of precision agriculture, lamb and goat meat compared to beef, and much more. They also share some of their predictions for what 2023 will bring in the worlds of nutrition and climate. It’s the mailbag episode! And it won’t be the last, so keep your questions about food and climate change coming. ...
Jan 10, 2023•54 min
This week on the show, internet sensation Hank Green talks with Mike and Tamar about the future of cell-based meat. Hank lives in Montana, which is hardcore ranching country. It’s a place where beef is king, cowboys are real and pickup trucks are the norm. But he’s convinced that the future of meat looks a lot different than it does today. And Mike and Tamar agree. But there are huge hurdles to overcome before the majority of us sit down to cell-based steaks at the dinner table. Scaling up bio r...
Dec 20, 2022•1 hr 1 min
Mike and Tamar talk a lot about eating better for our bodies and our planet. They’ve tackled meat versus plants, processed food versus whole food, cow milk versus almond milk. They even did a whole episode about the pros and cons of local food. But in this episode, they talk about the ultimate local food, something Tamar calls “first-hand food.” It’s the food we grow, forage, raise, hunt or even fish ourselves; and it’s central to Tamar’s book “To Boldly Grow.” In this episode Mike interviews Ta...
Dec 13, 2022•46 min
We want your feedback! Fill out our listener survey for a chance to win a $100 Patagonia gift card. In this live recording of Climavores, Mike and Tamar talk with special guest Dr. Marion Nestle, a nutrition and food studies professor at NYU and author of Slow Cooked: An Unexpected Life in Food Politics. Over her long career, Marion has become one of the leading voices on food, nutrition and politics. Her research examines scientific and socioeconomic influences on food choice, obesity, and food...
Dec 07, 2022•49 min
Join us on November 30 for a live , virtual episode of Climavores with guest Marion Nestle. Come ask a question about food, nutrition, and eating for the climate. We want your feedback! Fill out our listener survey for a chance to win a $100 Patagonia gift card. This week, a whole lot of Americans will sit down to Thanksgiving turkeys raised on farms; turkeys that have eaten corn and soybeans that needed land and fertilizer and other resources to grow. And although those turkeys are way better f...
Nov 22, 2022•45 min
We want your feedback! Fill out our listener survey for a chance to win a $100 Patagonia gift card. Join us on November 30 for a live , virtual episode of Climavores. Come ask a question about food, nutrition, and eating for the climate. As a Climavores listener, you know that we spend a ton of time trying to understand and help you understand how climate change affects food, and vice versa. From beef to corn to rice to deforestation and overfishing, to water and soil, and even to food waste, ou...
Nov 15, 2022•1 hr 6 min
Last week, The New York Times weighed in on food and climate change in a big way. They devoted an entire section of page one to Dr. Frank Mitloehner, the head of an agricultural research institute at the University of California, Davis. The headline? “He’s an Outspoken Defender of Meat. Industry Funds His Research, Files Show.” The implication of the story was that Mitloehner takes meat industry money and expresses meat industry views. But The Times article admitted it didn’t actually find anyth...
Nov 08, 2022•46 min
In recent weeks, climate activists in London, Paris and Germany have taken center stage for throwing food at famous works of art. Their goal? To focus attention on climate change and fossil fuel dependency. And it’s working. Videos of the protests have racked up tons of views on YouTube. But are these kinds of protests the most effective way to persuade the public? Mike and Tamar are in the anti-food-throwing camp. But while they don’t agree on the methods, they push back against critical voices...
Nov 01, 2022•52 min
