Harry Stevens @harrystevens.bsky.social · 07/07/2026I 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... 0105
Reposted by Harry StevensLyndsey Layton @lyndseylayton.bsky.social · 04/06/2026NEW: 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/...nytimes.comSee 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. 97751
Reposted by Harry StevensVikas Bajaj @vikasbajaj.bsky.social · 18/03/2026In 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/...nytimes.comWhy 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. 062
Harry Stevens @harrystevens.bsky.social · 18/03/2026I 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/... 46826
Reposted by Harry StevensAlyssa Fowers @alyssafowers.bsky.social · 04/02/2026I 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! 1022084
Reposted by Harry StevensRobinson Meyer @robinsonmeyer.bsky.social · 23/12/2025The Trump admin has started to realize batteries are an important general purpose technology. www.nytimes.com/2025/12/23/c... 2135572
Reposted by Harry StevensUSA TODAY @usatoday.com · 17/12/2025Exclusive: 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.bit.lyTrump moves to dismantle major US climate research center in ColoradoThe Trump administration is breaking up the National Center for Atmospheric Research, taking aim at one of the world's leading climate research labs. 19114761089
Reposted by Harry StevensMartijn Rasser @martijnrasser.bsky.social · 13/12/2025The 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...nytimes.comClean, Limitless Energy Exists. China Is Going Big in the Race to Harness It. 063
Reposted by Harry StevensPedro de las Heras Quirós @pheras.bsky.social · 13/12/2025"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... 073
Reposted by Harry StevensThe New York Times - Breaking News, US News, World News and Vid… @nytimes.com.web.brid.gy · 13/12/2025nytimes.comClean, Limitless Energy Exists. China Is Going Big in the Race to Harness It.Beijing is pouring vast resources into fusion research, while the U.S. wants private industry to lead the way. The winner could reshape civilization. 158
Reposted by Harry StevensSeaver Wang @wang-seaver.bsky.social · 24/10/2025Great @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/...nytimes.comHow 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. 0124
Reposted by Harry StevensThe Upshot @upshot.nytimes.com · 23/10/2025From NYT Climate, via @harrystevens.bsky.social and @bradplumer.bsky.social www.nytimes.com/interactive/...nytimes.comHow China Raced Ahead of the U.S. on Nuclear PowerThe United States was once the undisputed leader in atomic energy. Now it is trying to catch up. 263
Reposted by Harry StevensConrad Hackett @conradhackett.bsky.social · 23/10/2025Nuclear reactors built or under construction since 2013 US: 2 China: 46nytimes.comHow China Raced Ahead of the U.S. on Nuclear PowerThe United States was once the undisputed leader in atomic energy. Now it is trying to catch up. 43210
Harry Stevens @harrystevens.bsky.social · 08/08/2025The 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... 12015
Reposted by Harry StevensGlen Peters @glenpeters.bsky.social · 28/07/2025Based 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. 99450
Reposted by Harry StevensThe Upshot @upshot.nytimes.com · 09/06/2025About a quarter of the world’s oceans are experiencing temperatures that qualify as a marine heat wave. www.nytimes.com/2025/06/09/c...nytimes.comSee How Marine Heat Waves Are Spreading Across the Globe 31914
Reposted by Harry Stevenswhet moser @whetmoser.com · 09/06/2025wow, this is really good mapping www.nytimes.com/2025/06/09/c...nytimes.comSee How Marine Heat Waves Are Spreading Across the Globe 1204
Reposted by Harry StevensBrad Plumer @bradplumer.bsky.social · 13/05/2025Since 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.socialnytimes.comA Clean Energy Boom Was Just Starting. Now, a Republican Bill Aims to End It. 12817
Reposted by Harry StevensDean Napolitano @dinonapolitano.bsky.social · 27/04/2025Rebecca 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.”nytimes.comThe Trump Administration Wants Seafloor Mining. What Does That Mean?A recent executive order would accelerate mining in little-understood undersea ecosystems. 01910
Harry Stevens @harrystevens.bsky.social · 27/04/2025A 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... 38415
Reposted by Harry StevensC4ADS @c4ads.org · 22/04/2025ICYMI: 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/qJuK213buff.lyHere’s What to Know About Rare Earth Minerals and Renewable EnergyThe shift to cleaner power needs resources from China. An export ban just cut off some supplies. 032
Harry Stevens @harrystevens.bsky.social · 19/03/2025Jury 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...nytimes.comJury Finds Greenpeace Liable for Hundreds of Millions in DamagesA 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. 150
Harry Stevens @harrystevens.bsky.social · 06/03/2025🦋 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/... 1/3nytimes.comSee 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. 11225124
Reposted by Harry StevensAndrew Freedman @afreedma.bsky.social · 21/02/2025The 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...axios.comScoop: U.S. delegation pulled from key U.N. climate science meetingThe IPCC meeting in China is slated to determine the content in the group's next series of reports. 43826
Harry Stevens @harrystevens.bsky.social · 19/02/2025Nikola, 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...nytimes.comNikola, Electric Truck Maker, Files for BankruptcyThe company, which once enjoyed a surging stock price, struggled to turn its plans for electric and hydrogen trucks into a viable business. 031
Harry Stevens @harrystevens.bsky.social · 14/02/2025The 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...nytimes.comLayoffs Begin at Energy Department, Part of Trump PurgeMass firings have rocked multiple agencies as President Trump and Elon Musk accelerate plans to drastically slash and reshape the federal work force. 031
Harry Stevens @harrystevens.bsky.social · 13/02/2025The State Department plans to spend $400 million on armored Cybertrucks from Elon Musk’s Tesla www.nytimes.com/live/2025/02...nytimes.comState Dept. Plans $400 Million Purchase of Armored Tesla Cybertrucks 4135
Reposted by Harry StevensAndrew Freedman @afreedma.bsky.social · 09/02/2025NEW: @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...axios.comNOAA told to search its grants for climate change termsThe search would provide a list of NOAA's climate change-related grants. 24216146
Harry Stevens @harrystevens.bsky.social · 10/02/2025NEW: 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 55942
Reposted by Harry StevensSam @samd.bsky.social · 14/01/2025this 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) 15976001770
Harry Stevens @harrystevens.bsky.social · 06/01/2025At this rate we'll bend the aerosol cooling curve back up to 0 long before we bend the greenhouse warming curve back down. 060
Harry Stevens @harrystevens.bsky.social · 18/12/2024Startup 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... 030
Reposted by Harry StevensRobinson Meyer @robinsonmeyer.bsky.social · 16/12/2024Permitting reform is dead in the 118th Congress, per Josh Siegel at Politico 66121
Harry Stevens @harrystevens.bsky.social · 16/12/2024“You have to make sure your numbers are correct before you scare the pants off people.” 040
Reposted by Harry StevensNat Bullard @nathanielbullard.com · 13/12/2024“geothermal energy could meet 15% of global electricity demand growth between now and 2050 if project costs continue to decline. This would mean the deployment of as much as 800 gigawatts of geothermal capacity worldwide” www.iea.org/news/technol...iea.orgTechnology breakthroughs are unlocking geothermal energy’s vast potential in countries across the globe - News - IEATechnology breakthroughs are unlocking geothermal energy’s vast potential in countries across the globe - News from the International Energy Agency 47019
Reposted by Harry StevensJeff Brady @jeffbradynews.bsky.social · 09/12/2024Interesting piece here on "Why so many Americans prefer sprawl to walkable neighborhoods" 062
Reposted by Harry StevensTom Weatherburn @tdubolyou.bsky.social · 09/12/2024Love these maps by @harrystevens.bsky.social for the @washingtonpost.com. Great analysis and the search tool allows you to see walkability for different cities. www.washingtonpost.com/climate-envi... 1161
Reposted by Harry Stevensmatteobruno.bsky.social @matteobruno.bsky.social · 09/12/2024Really great piece with a lot of food for thought about proximity and density, nicely covering and adding to our analysis. Thanks Harry! 061
Harry Stevens @harrystevens.bsky.social · 07/12/2024Do you live in a walkable neighborhood or suburban sprawl? Explore more than 200 metro areas and see how your neighborhood ranks in today's Climate Lab column. Gift link: wapo.st/41lOtkO 2130091
Reposted by Harry StevensEd Hawkins @edhawkins.org · 27/11/2024Bivariate colour maps, with a UK climate example. Even on the scale of the UK we have different climate zones, from relatively cold & wet, to warm & dry. www.datawim.com/post/creatin... [Thanks: @annalombardi.bsky.social, @oceanterra.org] 514929
Reposted by Harry StevensNiamh Cavanagh @niamhcav.bsky.social · 26/11/2024Smallpox has been eradicated worldwide since 1980 and is not held in check by vaccines, contrary to posts suggesting the deadly virus may circulate again if vaccines become optional. www.reuters.com/fact-check/s...reuters.comFact Check: Smallpox is eradicated, not held in check by vaccinesSmallpox has been eradicated worldwide since 1980 and is not held in check by vaccines, contrary to posts suggesting the deadly virus may circulate again if vaccines become optional. 3195
Reposted by Harry StevensJo Wood @jwolondon.bsky.social · 27/11/2024#30DayMapChallenge Day 26: Map Projections I chose the Gingery projection for today's challenge as it gave me a chance to reproduce Cram's Air Age U.S. Centric World map. This was all about the detail, from vintage textures to projection labels. All in Plot! observablehq.com/@jwolondon/t... 66914
Reposted by Harry StevensJesse D. Jenkins @jessedjenkins.com · 25/11/2024Another "nuclear power plant" photo that's actually a coal plant. PSA: cooling towers ≠ nuclear plant. Giveaways: large smokestacks, more than 2 cooling towers, large conveyor belts (nuclear fuel is loaded once every 12-18 months not continuously), etc. 🔌💡 1228035
Reposted by Harry StevensSpace @redditspaceviewes.bsky.social · 24/11/2024The Helix Nebula 583339901892
Reposted by Harry StevensNat Bullard @nathanielbullard.com · 20/11/2024Another chart for the day. China was already a major auto exporter a decade ago. It now exports more vehicles ($116 billion in the 12 months through September) than parts ($91 billion) by value. Data source: www.bloomberg.com/news/article... 1283
Reposted by Harry StevensJay Turner @jayturner.bsky.social · 19/11/2024Inflation Reduction Act + 27 months My students at Wellesley and I are tracking investments in the US electric vehicle supply chain. Surprise: IRA + 27 months and investments jumped again. We are now tracking: 157 new projects $101 billion in investments 63,718 new jobs announced A short 🧵🔌💡🔌🚗 612054
Reposted by Harry StevensCapital Weather @capitalweather.com · 18/11/2024Don't miss it! Here's the link to enter our annual DC snow prediction contest: 🔗https://www.washingtonpost.com/weather/2024/11/18/dc-snow-prediction-contest/ 513114