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Climate

We Need to Talk About Nitrous Oxide

On a very potent greenhouse gas, Florida’s flooding, and hydropower

We Need to Talk About Nitrous Oxide
Heatmap Illustration/Getty Images

Current conditions: Temperatures in northern China will top 107 degrees Fahrenheit today • Months-long water shortages have sparked riots in Algeria • Unseasonably cold and wet weather is being blamed for stunted economic growth in the U.K.

THE TOP FIVE

1. Torrential rains flood southern Florida

More than 7 million people are under flood advisories in Florida, with a tropical storm stalled over the state at least through Friday. Flooding was reported across the southern part of Florida including Fort Myers, Miami, and even farther north. In Sarasota, just south of Tampa, nearly four inches of rain fell in an hour, a new record for the area, with total rainfall reaching about 10 inches on Tuesday. The downpour was a one-in-1,000-year event. “The steadiest and heaviest rain will fall on South and central Florida through Thursday, but more spotty downpours and thunderstorms will continue to pester the region into Saturday,” AccuWeather senior meteorologist Reneé Duff said.

X/WeatherProf

2. Report: New hydropower installations see ‘downward trend’

There has been a “downward trend” in global hydropower output over the last five years, according to the International Hydropower Association’s new 2024 World Hydropower Outlook. Hydropower is the largest renewable source of electricity, according to the International Energy Agency. It generates more electricity than all other renewable technologies combined, and plays a key role in the energy transition. But hydropower installations must double to meet net zero goals by 2050. The IEA has also projected that “without major policy changes, global hydropower expansion is expected to slow down this decade.” That may already be happening:

International Hydropower Association

The report estimates that investment needs to double – to $130 billion per year – in order to double installed hydropower capacity by 2050.

3. N20 emissions rise, but HCFC levels fall

Nitrous oxide doesn’t get as much attention as carbon dioxide or methane, but it should: This greenhouse gas is more potent than both, depletes the ozone, and is the third largest contributor to climate change, according to Carbon Brief. A new study published in the journal Earth System Science Data finds that human-caused N20 emissions rose by 40% over the past 40 years, and that most of this increase was driven by the use of nitrogen fertilizer and manure in agriculture to meet growing demand for meat and dairy. Agriculture emissions of N20 were 67% higher in 2020 than they were in 1980. The concentration of N20 in the atmosphere is now 25% higher than in pre-industrial years. “The unfettered increase in a greenhouse gas with a global warming potential approximately 300 times larger than carbon dioxide, presents dire consequences for the planet,” the researchers said in a press release.

But it’s not all bad news. A separate study out this week finds that atmospheric levels of ozone-depleting greenhouse gases called hydrochlorofluorocarbons (HCFCs) peaked in 2021 – five years ahead of schedule – and are declining faster than expected.

4. Latest talks on climate finance goals end in stalemate

UN climate finance talks in Bonn, Germany, ended on a sour note yesterday, “with negotiators from developing and developed countries blaming each other in fiery exchanges,” according to Climate Home News. The discussions were a lead-up to November’s COP29 in Azerbaijan, where countries are expected to put forward a new annual finance goal for helping vulnerable countries protect themselves from climate change and shift to clean energy. The current target, set in 2009, sits at $100 billion annually. Boosting this fund is seen as “the most important decision” expected to come out of this year’s climate summit. But so far, there has been little progress. Rich countries only managed to meet the existing $100 billion annual pledge in 2022, two years late.

5. Rising sea levels threaten Greek island known as mythological birthplace of Apollo

One of the most important sites in Greek and Roman mythology is sinking into the sea as climate change causes water levels to rise. The tiny abandoned Greek island of Delos, in the Aegean Sea, was first settled in the third millennium BC and was once a busy port city with 30,000 occupants. In Greek mythology, it was the birthplace of Apollo and his sister Artemis. Today it is dotted with 2,000-year-old archaeological ruins and has been a UNESCO World Heritage site since 1990. But sea levels around the island have risen 66 feet in just 10 years, and archaeologists told AFP the ruins will disappear entirely in about 50 years, eaten away by encroaching sea water and rising temperatures.

Ruins on DelosChloé Chavanon via Unsplash

THE KICKER

Joey Chestnut, the 16-time winner of Nathan’s Famous Hot Dog Eating Contest in Coney Island, has been banned from the competition this year because he struck a deal with plant-based food company Impossible Foods.

Editor’s note: A previous version of this articles mistakenly referred to nitrous oxide as N02 instead of N20. It has been corrected. We regret the error.

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Bruce Westerman, the Capitol, a data center, and power lines.
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After many months of will-they-won’t-they, it seems that the dream (or nightmare, to some) of getting a permitting reform bill through Congress is squarely back on the table.

“Permitting reform” has become a catch-all term for various ways of taking a machete to the thicket of bureaucracy bogging down infrastructure projects. Comprehensive permitting reform has been tried before but never quite succeeded. Now, a bipartisan group of lawmakers in the House are taking another stab at it with the SPEED Act, which passed the House Natural Resources Committee the week before Thanksgiving. The bill attempts to untangle just one portion of the permitting process — the National Environmental Policy Act, or NEPA.

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Hotspots

GOP Lawmaker Asks FAA to Rescind Wind Farm Approval

And more on the week’s biggest fights around renewable energy.

The United States.
Heatmap Illustration/Getty Images

1. Benton County, Washington – The Horse Heaven wind farm in Washington State could become the next Lava Ridge — if the Federal Aviation Administration wants to take up the cause.

  • On Monday, Dan Newhouse, Republican congressman of Washington, sent a letter to the FAA asking them to review previous approvals for Horse Heaven, claiming that the project’s development would significantly impede upon air traffic into the third largest airport in the state, which he said is located ten miles from the project site. To make this claim Newhouse relied entirely on the height of the turbines. He did not reference any specific study finding issues.
  • There’s a wee bit of irony here: Horse Heaven – a project proposed by Scout Clean Energy – first set up an agreement to avoid air navigation issues under the first Trump administration. Nevertheless, Newhouse asked the agency to revisit the determination. “There remains a great deal of concern about its impact on safe and reliable air operations,” he wrote. “I believe a rigorous re-examination of the prior determination of no hazard is essential to properly and accurately assess this project’s impact on the community.”
  • The “concern” Newhouse is referencing: a letter sent from residents in his district in eastern Washington whose fight against Horse Heaven I previously chronicled a full year ago for The Fight. In a letter to the FAA in September, which Newhouse endorsed, these residents wrote there were flaws under the first agreement for Horse Heaven that failed to take into account the full height of the turbines.
  • I was first to chronicle the risk of the FAA grounding wind project development at the beginning of the Trump administration. If this cause is taken up by the agency I do believe it will send chills down the spines of other project developers because, up until now, the agency has not been weaponized against the wind industry like the Interior Department or other vectors of the Transportation Department (the FAA is under their purview).
  • When asked for comment, FAA spokesman Steven Kulm told me: “We will respond to the Congressman directly.” Kulm did not respond to an additional request for comment on whether the agency agreed with the claims about Horse Heaven impacting air traffic.

2. Dukes County, Massachusetts – The Trump administration signaled this week it will rescind the approvals for the New England 1 offshore wind project.

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Q&A

How Rep. Sean Casten Is Thinking of Permitting Reform

A conversation with the co-chair of the House Sustainable Energy and Environment Coalition

Rep. Sean Casten.
Heatmap Illustration

This week’s conversation is with Rep. Sean Casten, co-chair of the House Sustainable Energy and Environment Coalition – a group of climate hawkish Democratic lawmakers in the U.S. House of Representatives. Casten and another lawmaker, Rep. Mike Levin, recently released the coalition’s priority permitting reform package known as the Cheap Energy Act, which stands in stark contrast to many of the permitting ideas gaining Republican support in Congress today. I reached out to talk about the state of play on permitting, where renewables projects fit on Democrats’ priority list in bipartisan talks, and whether lawmakers will ever address the major barrier we talk about every week here in The Fight: local control. Our chat wound up immensely informative and this is maybe my favorite Q&A I’ve had the liberty to write so far in this newsletter’s history.

The following conversation was lightly edited for clarity.

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