Harry Stevens

The EPA said it will stop updating a database that companies use to calculate the greenhouse gas emissions from their supply chains. In July, EPA suspended the database's lead scientist because he signed a letter criticizing the Trump administration.

www.nytimes.com/2025/08/08/c...

Figure showing coal, oil, and gas emissions from 1960, with a little red dot for 2025, with 0.5% growth in coal, 1% in oil, 1.6% in gas, and -1.1% for cement. These are all leap year adjusted since 2024 had one more day than 2025...

Based on fossil fuel growth rates from the IEA Coal Mid-Year Update, July Oil Market Report, & Gas Market Report Q3, fossil CO2 emissions would grow around 0.8% in 2025, reaching another record high...

We are only half way through the year, but don't build too much expectation for peak emissions.

See How Marine Heat Waves Are Spreading Across the Globe

About a quarter of the world’s oceans are experiencing temperatures that qualify as a marine heat wave.

www.nytimes.com/2025/06/09/c...

See How Marine Heat Waves Are Spreading Across the Globe

wow, this is really good mapping www.nytimes.com/2025/06/09/c...

GitHub - HarryStevens/d3-geo-hemispheres: A map projection for a vertical world. A map projection for a vertical world. Contribute to HarryStevens/d3-geo-hemispheres development by creating an account on GitHub.

github.com/HarryStevens...

github.com/HarryStevens...

A Clean Energy Boom Was Just Starting. Now, a Republican Bill Aims to End It.

Since the IRA passed, companies have made plans to invest over $843 billion in clean energy projects. But just one-third of that has actually been invested, new data shows. Much of the rest is now at risk.

On the new House Republican plan to dismantle the IRA, with @harrystevens.bsky.social

The Trump Administration Wants Seafloor Mining. What Does That Mean? A recent executive order would accelerate mining in little-understood undersea ecosystems.

Rebecca Dzombak, Max Bearak & @harrystevens.bsky.social look at the possible long-term consequences from seabed mining.

“Part of the challenge in understanding potential effects is that the pace of life is slow on the seafloor. Deep-sea fish can live hundreds of years. Corals can live thousands.”

The azimuthal equal-area projects the sphere onto a disk and preserves area across the projection. You can display the whole planet, but latitudes far from the center get very distorted. The clipped two-hemisphere approach avoids the distortion and fits nicely on a phone.

I first saw this last year in a map by @bananafish.bsky.social. Not sure if he invented it or saw it somewhere else.

www.washingtonpost.com/climate-envi...

A cylindrical or pseudocylindrical (in this case Patterson's Natural Earth) projection will start looking real scrunchy at around 600 pixels, but the stacked Lamberts work great down to 300 pixels — as narrow as you'll ever need.

A trick for fitting world maps on phones:

Stack two azimuthal equal-area projections, clipped at 90° longitude, each one rotated 180° from the other.

The bottom map covers the top's Antarctica, which reduces the total height and looks nice.

As seen in www.nytimes.com/2025/04/25/c...

Here’s What to Know About Rare Earth Minerals and Renewable Energy The shift to cleaner power needs resources from China. An export ban just cut off some supplies.

ICYMI: C4ADS Program Director Krista Rasmussen spoke to @harrystevens.bsky.social about #China’s growing control of critical #mineral supply chains — building on our recent Refining Power investigation into ownership of Indonesian nickel refineries.

From @nytimes.com 👇
buff.ly/qJuK213

Jury Finds Greenpeace Liable for Hundreds of Millions in Damages A lawsuit by pipeline giant Energy Transfer claimed Greenpeace had played a major, costly role in protests nearly a decade ago. Greenpeace has said a loss could put it out of business.

Jury Finds Greenpeace Liable for Hundreds of Millions in Damages

A lawsuit by pipeline giant Energy Transfer claimed Greenpeace had played a major, costly role in protests nearly a decade ago. Greenpeace has said a loss could put it out of business.

by Karen Zraick

www.nytimes.com/2025/03/19/c...

See How Butterfly Numbers Are Dropping Near You (Gift Article) Populations are falling in the United States, a new study has found. Look up what’s happening in your area.

🦋 The study didn't investigate causes, but habitat disruption and pesticides likely contributed to declines. Climate change may have played a role: species saw larger drops in the south of their ranges, suggesting northward migration w/ temp. increase.

www.nytimes.com/interactive/...

3/3

🦋 This is the first study to combine butterfly observations from thousands of surveys across the country to create a complete picture of U.S. butterfly trends.

Of 342 species, 245 suffered declines of at least 10 percent.

Read the story here: www.nytimes.com/interactive/...

2/3

See How Butterfly Numbers Are Dropping Near You (Gift Article) Populations are falling in the United States, a new study has found. Look up what’s happening in your area.

🦋 In 20 years, the contiguous U.S. lost 22 percent of its butterflies, according to a groundbreaking new study published today.

We got the data, and I made a tool that lets you find out what's happening with butterfly species in your town.

Gift link: www.nytimes.com/interactive/...

1/3

Scoop: U.S. delegation pulled from key U.N. climate science meeting The IPCC meeting in China is slated to determine the content in the group's next series of reports.

The US won't have an official govt delegation at an upcoming, key UN climate science meeting next week. (Story led by @mccuri.bsky.social )
**Whether this signals a broader federal disengagement from int'l climate research is not yet clear... www.axios.com/2025/02/20/u...

Nikola, Electric Truck Maker, Files for Bankruptcy The company, which once enjoyed a surging stock price, struggled to turn its plans for electric and hydrogen trucks into a viable business.

Nikola, the EV startup that once enjoyed a surging stock price, has filed for bankruptcy after struggling to turn its plans for electric and hydrogen trucks into a viable business.

www.nytimes.com/2025/02/19/b...

Layoffs Begin at Energy Department, Part of Trump Purge Mass firings have rocked multiple agencies as President Trump and Elon Musk accelerate plans to drastically slash and reshape the federal work force.

The Energy Department has begun laying off staff — around 1,000 workers — as part of Trump's purge of the federal workforce

www.nytimes.com/2025/02/14/u...

State Dept. Suspends Plan to Buy Armored Vehicles From Elon Musk’s Tesla Vehicles made by Elon Musk’s company were on a purchase list issued before Donald Trump was inaugurated and before Mr. Musk became one of the president’s top advisers.

Update: The State Dept.'s plan to spend $400 million on armored Teslas, which was made after Trump was inaugurated but before he took office, has been suspended

www.nytimes.com/2025/02/13/u...

State Dept. Plans $400 Million Purchase of Armored Tesla Cybertrucks

The State Department plans to spend $400 million on armored Cybertrucks from Elon Musk’s Tesla

www.nytimes.com/live/2025/02...

Thanks Shravya

NOAA told to search its grants for climate change terms The search would provide a list of NOAA's climate change-related grants.

NEW: @noaa.gov offices have been asked to search their grants for climate-related keywords, among other executive order-related terms. This could put climate grant-funding in the crosshairs if/once the judicial order holding the funding freeze back is lifted. www.axios.com/2025/02/09/n...

Trump Is Freezing Money for Clean Energy. Republican States Have the Most to Lose. (Gift Article) About 80 percent of manufacturing investments spurred by a Biden-era climate law have flowed to Republican districts. Efforts to stop federal payments are already causing pain.

Trump Is Freezing Money for Clean Energy. Red States Have the Most to Lose.

www.nytimes.com/2025/02/10/c...

NEW: Trump is freezing money for clean energy — batteries, EVs, renewables, heat pumps, and more.

Nearly 80% of manufacturing investments spurred by the Inflation Reduction Act have flowed to Republican congressional districts.

w/ Lisa Friedman & @bradplumer.bsky.social

👇 Gift link in reply

this is incredible stuff. most state DOTs would spend tens of billions on highway expansions to try and see numbers like this (that wouldn’t even pan out anyway thanks to induced demand lol)

At this rate we'll bend the aerosol cooling curve back up to 0 long before we bend the greenhouse warming curve back down.

Startup company Commonwealth Fusion Systems aims to build its first fusion power plant in Richmond, VA, to begin generating carbon-free electricity in the early 2030s.

www.nytimes.com/2024/12/17/c...