Harry Stevens
@harrystevens.bsky.social
Climate and graphics at @nytimes.com Email me and check my work: harry.stevens@nytimes.com
I just released a major update to d3-regression, a JavaScript library for calculating and rendering statistical regressions: ✅ TypeScript declarations ✅ Logistic and sigmoidal regressions ✅ Speed improvements ✅ Modern ECMAScript ✅ Bug fixes Try it: observablehq.com/@harrysteven...
NEW: The Trump administration is poised to do what no other nation has: permit industrial mining of the ocean floor. Here's how that would work, from @harrystevens.bsky.social @sachimulkey.bsky.social and junho lee www.nytimes.com/interactive/...
See What Deep-Sea Mining Actually Looks Like, Over 2 Miles Down (Gift Article)
A mining company sent an advanced ship to try to vacuum up valuable minerals from the deep ocean. Here’s how it worked.
nytimes.com
In Ohio and across the country, tech companies are going all out to build off-grid natural gas power plants for their A.I. data centers. Great story by @rebeccafelliott.bsky.social and @harrystevens.bsky.social www.nytimes.com/interactive/...
Why Tech Giants Are Ditching the Power Grid (Gift Article)
Seeking power for data centers, Meta and other companies plan to use equipment that is expensive and polluting.
nytimes.com
I have a new story with @rebeccafelliott.bsky.social on how Meta and others, seeking power for data centers, are building their own power plants. These projects have transformed places like New Albany, Ohio, where farmland has given way to industry. Gift link: www.nytimes.com/interactive/...
I was laid off from the Washington Post today, along with hundreds (!!!) of incredible colleagues. If you need a data journalist, chart designer, or wacky-idea-specialist, give me a shout!
The Trump admin has started to realize batteries are an important general purpose technology. www.nytimes.com/2025/12/23/c...
Exclusive: The Trump administration is moving to dismantle the National Center for Atmospheric Research in Colorado, according to a senior White House official, taking aim at one of the world's leading climate research labs.
Trump moves to dismantle major US climate research center in Colorado
The Trump administration is breaking up the National Center for Atmospheric Research, taking aim at one of the world's leading climate research labs.
bit.ly
The question isn't whether fusion will arrive—it's who gets there first, and what that means for the rest of the century. #FusionEnergy #EnergyTransition #Science www.nytimes.com/2025/12/13/c...
Clean, Limitless Energy Exists. China Is Going Big in the Race to Harness It.
nytimes.com
"In America, the lack of government support is one reason so many fusion researchers are joining start-ups, Dr. Liu said. Chinese officials, by contrast, are putting significant resources into a possible “ultimate solution” to humankind’s energy needs" www.nytimes.com/2025/12/13/c...
Great @bradplumer.bsky.social @harrystevens.bsky.social piece on China's nuclear ambition. I'm biased but I think a good satellite comparison is worth 1000 words. Incidentally, the score for aluminum smelters built since 1990 would be ~50-60 for China, 0 for the US. www.nytimes.com/interactive/...
How China Raced Ahead of the U.S. on Nuclear Power (Gift Article)
The United States was once the undisputed leader in atomic energy. Now it is trying to catch up.
nytimes.com
Nuclear reactors built or under construction since 2013 US: 2 China: 46
How China Raced Ahead of the U.S. on Nuclear Power
The United States was once the undisputed leader in atomic energy. Now it is trying to catch up.
nytimes.com
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...
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.
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
nytimes.com
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
A Clean Energy Boom Was Just Starting. Now, a Republican Bill Aims to End It.
nytimes.com
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 Trump Administration Wants Seafloor Mining. What Does That Mean?
A recent executive order would accelerate mining in little-understood undersea ecosystems.
nytimes.com
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...
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
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.
buff.ly
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...
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.
nytimes.com
🦋 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
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.
nytimes.com
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...
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.
axios.com
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...
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.
nytimes.com
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...
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.
nytimes.com
The State Department plans to spend $400 million on armored Cybertrucks from Elon Musk’s Tesla www.nytimes.com/live/2025/02...
State Dept. Plans $400 Million Purchase of Armored Tesla Cybertrucks
nytimes.com
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...
NOAA told to search its grants for climate change terms
The search would provide a list of NOAA's climate change-related grants.
axios.com
