Harry Stevens
@harrystevens.bsky.social
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.
April 27, 2025 at 1:39 AM
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...
www.washingtonpost.com/climate-envi...
April 27, 2025 at 1:35 AM
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...
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.
April 27, 2025 at 1:30 AM
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...
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...
April 27, 2025 at 1:23 AM
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...
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...
🦋 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
Of 342 species, 245 suffered declines of at least 10 percent.
Read the story here: www.nytimes.com/interactive/...
2/3
March 6, 2025 at 7:11 PM
🦋 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
Of 342 species, 245 suffered declines of at least 10 percent.
Read the story here: www.nytimes.com/interactive/...
2/3
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
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
February 10, 2025 at 2:46 PM
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
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
At this rate we'll bend the aerosol cooling curve back up to 0 long before we bend the greenhouse warming curve back down.
January 6, 2025 at 5:11 PM
At this rate we'll bend the aerosol cooling curve back up to 0 long before we bend the greenhouse warming curve back down.
Many U.S. cities were built for cars.
Zoomed out, car-oriented cities all look about the same on the map: dense downtowns surrounded by sprawl with arterial highways dissecting areas where walkable neighborhoods might otherwise be built.
Gift link for more: wapo.st/41lOtkO
Zoomed out, car-oriented cities all look about the same on the map: dense downtowns surrounded by sprawl with arterial highways dissecting areas where walkable neighborhoods might otherwise be built.
Gift link for more: wapo.st/41lOtkO
December 7, 2024 at 2:12 PM
Many U.S. cities were built for cars.
Zoomed out, car-oriented cities all look about the same on the map: dense downtowns surrounded by sprawl with arterial highways dissecting areas where walkable neighborhoods might otherwise be built.
Gift link for more: wapo.st/41lOtkO
Zoomed out, car-oriented cities all look about the same on the map: dense downtowns surrounded by sprawl with arterial highways dissecting areas where walkable neighborhoods might otherwise be built.
Gift link for more: wapo.st/41lOtkO
Most Americans say they prefer a bigger house in the suburbs vs. a smaller place in a walkable neighborhood.
Yet sprawl is objectively bad in many ways, and there is an undersupply of walkable neighborhoods relative to demand.
More analysis and walkability data in Climate Lab: wapo.st/41lOtkO
Yet sprawl is objectively bad in many ways, and there is an undersupply of walkable neighborhoods relative to demand.
More analysis and walkability data in Climate Lab: wapo.st/41lOtkO
December 7, 2024 at 2:12 PM
Most Americans say they prefer a bigger house in the suburbs vs. a smaller place in a walkable neighborhood.
Yet sprawl is objectively bad in many ways, and there is an undersupply of walkable neighborhoods relative to demand.
More analysis and walkability data in Climate Lab: wapo.st/41lOtkO
Yet sprawl is objectively bad in many ways, and there is an undersupply of walkable neighborhoods relative to demand.
More analysis and walkability data in Climate Lab: wapo.st/41lOtkO
Do 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
Gift link: wapo.st/41lOtkO
December 7, 2024 at 2:11 PM
Do 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
Gift link: wapo.st/41lOtkO
Most of the country has seen higher average winter temperatures as humans have altered the Earth's atmosphere.
“The laws of thermodynamics are tough to beat,”
@climatologist49.bsky.social said. “As you warm temperatures up, you’re just going to get less snow.”
wapo.st/3CjsMaD
“The laws of thermodynamics are tough to beat,”
@climatologist49.bsky.social said. “As you warm temperatures up, you’re just going to get less snow.”
wapo.st/3CjsMaD
November 13, 2024 at 2:43 PM
Most of the country has seen higher average winter temperatures as humans have altered the Earth's atmosphere.
“The laws of thermodynamics are tough to beat,”
@climatologist49.bsky.social said. “As you warm temperatures up, you’re just going to get less snow.”
wapo.st/3CjsMaD
“The laws of thermodynamics are tough to beat,”
@climatologist49.bsky.social said. “As you warm temperatures up, you’re just going to get less snow.”
wapo.st/3CjsMaD
I built this tool that lets you look up your county to see this winter's snow forecast along with the snow trend of the past six decades.
Check it out with this gift link: wapo.st/3CjsMaD
Check it out with this gift link: wapo.st/3CjsMaD
November 13, 2024 at 2:41 PM
I built this tool that lets you look up your county to see this winter's snow forecast along with the snow trend of the past six decades.
Check it out with this gift link: wapo.st/3CjsMaD
Check it out with this gift link: wapo.st/3CjsMaD
I think it might be more interesting if we try to refute the strongest possible version of the argument rather than a FiveThirtyEight blog post. What about what the IPCC says about it? Or Laurens Bouwer?
IPCC: www.ipcc.ch/site/assets/...
Bouwer: link.springer.com/chapter/10.1...
IPCC: www.ipcc.ch/site/assets/...
Bouwer: link.springer.com/chapter/10.1...
October 25, 2024 at 8:23 PM
I think it might be more interesting if we try to refute the strongest possible version of the argument rather than a FiveThirtyEight blog post. What about what the IPCC says about it? Or Laurens Bouwer?
IPCC: www.ipcc.ch/site/assets/...
Bouwer: link.springer.com/chapter/10.1...
IPCC: www.ipcc.ch/site/assets/...
Bouwer: link.springer.com/chapter/10.1...
The attached screenshot shows what SREX 2012 says about the issue. See page 9 here: www.ipcc.ch/site/assets/...
October 25, 2024 at 7:01 PM
The attached screenshot shows what SREX 2012 says about the issue. See page 9 here: www.ipcc.ch/site/assets/...
And in these passages, I explain why some scientists favor event attribution studies.
October 25, 2024 at 4:52 PM
And in these passages, I explain why some scientists favor event attribution studies.
In the study of normalized U.S. hurricane losses that I was citing, there was in fact no trend. To say otherwise would be to misrepresent the study's findings.
But immediately afterwards, I provide a long list of the ways in which climate change impacts the economy.
But immediately afterwards, I provide a long list of the ways in which climate change impacts the economy.
October 25, 2024 at 4:49 PM
In the study of normalized U.S. hurricane losses that I was citing, there was in fact no trend. To say otherwise would be to misrepresent the study's findings.
But immediately afterwards, I provide a long list of the ways in which climate change impacts the economy.
But immediately afterwards, I provide a long list of the ways in which climate change impacts the economy.
NEW Climate Lab: What the world can learn from the UK's coal exit.
Key points:
- Have consistent policy even if gov't changes
- Don't shut down clean firm e.g. nuclear
- Charge for emissions
Featuring this awesome lava lamp by Niko Kommenda
Gift link: wapo.st/4exdKMM
Key points:
- Have consistent policy even if gov't changes
- Don't shut down clean firm e.g. nuclear
- Charge for emissions
Featuring this awesome lava lamp by Niko Kommenda
Gift link: wapo.st/4exdKMM
October 4, 2024 at 4:32 PM
NEW Climate Lab: What the world can learn from the UK's coal exit.
Key points:
- Have consistent policy even if gov't changes
- Don't shut down clean firm e.g. nuclear
- Charge for emissions
Featuring this awesome lava lamp by Niko Kommenda
Gift link: wapo.st/4exdKMM
Key points:
- Have consistent policy even if gov't changes
- Don't shut down clean firm e.g. nuclear
- Charge for emissions
Featuring this awesome lava lamp by Niko Kommenda
Gift link: wapo.st/4exdKMM
🦟 I built a little app that lets you look up your city or town from among 47,524 locations to see how mosquito season has changed.
Check it out here: wapo.st/3yCsvOQ
🧵 4/6
Check it out here: wapo.st/3yCsvOQ
🧵 4/6
August 22, 2024 at 1:53 PM
🦟 I built a little app that lets you look up your city or town from among 47,524 locations to see how mosquito season has changed.
Check it out here: wapo.st/3yCsvOQ
🧵 4/6
Check it out here: wapo.st/3yCsvOQ
🧵 4/6
The Northeast, which has warmed faster than the rest of the country, experienced the biggest increase in mosquito days.
Mosquito season shortened in hotter or drought-impacted regions such as Texas & the Southwest.
Data for all states: wapo.st/3yCsvOQ
🧵 3/6
Mosquito season shortened in hotter or drought-impacted regions such as Texas & the Southwest.
Data for all states: wapo.st/3yCsvOQ
🧵 3/6
August 22, 2024 at 1:52 PM
The Northeast, which has warmed faster than the rest of the country, experienced the biggest increase in mosquito days.
Mosquito season shortened in hotter or drought-impacted regions such as Texas & the Southwest.
Data for all states: wapo.st/3yCsvOQ
🧵 3/6
Mosquito season shortened in hotter or drought-impacted regions such as Texas & the Southwest.
Data for all states: wapo.st/3yCsvOQ
🧵 3/6
Good mosquito data is hard to find, so scientists use weather data as a proxy. If humidity >= 42% & temp is 50-95°F, conditions are likely suitable for mosquitoes.
Ecologist Rebeca de Jesús Crespo: “These maps are good indicators of factors that are relevant for mosquito vector survival.”
2/6
Ecologist Rebeca de Jesús Crespo: “These maps are good indicators of factors that are relevant for mosquito vector survival.”
2/6
August 22, 2024 at 1:52 PM
Good mosquito data is hard to find, so scientists use weather data as a proxy. If humidity >= 42% & temp is 50-95°F, conditions are likely suitable for mosquitoes.
Ecologist Rebeca de Jesús Crespo: “These maps are good indicators of factors that are relevant for mosquito vector survival.”
2/6
Ecologist Rebeca de Jesús Crespo: “These maps are good indicators of factors that are relevant for mosquito vector survival.”
2/6
🦟 Mosquito season is changing. See if it has gotten longer in your area.
NEW Climate Lab column: wapo.st/3yCsvOQ
🧵 1/6
NEW Climate Lab column: wapo.st/3yCsvOQ
🧵 1/6
August 22, 2024 at 1:50 PM
🦟 Mosquito season is changing. See if it has gotten longer in your area.
NEW Climate Lab column: wapo.st/3yCsvOQ
🧵 1/6
NEW Climate Lab column: wapo.st/3yCsvOQ
🧵 1/6
New from Berkeley Earth:
June 2024 was the warmest June since directly measured instrumental records began in 1850. It was the 13th consecutive month to set a new monthly record.
June 2024 was the warmest June since directly measured instrumental records began in 1850. It was the 13th consecutive month to set a new monthly record.
July 18, 2024 at 6:16 PM
New from Berkeley Earth:
June 2024 was the warmest June since directly measured instrumental records began in 1850. It was the 13th consecutive month to set a new monthly record.
June 2024 was the warmest June since directly measured instrumental records began in 1850. It was the 13th consecutive month to set a new monthly record.
Geothermal developers say they got shafted in the recent bipartisan infrastructure law.
Other clean energy tech got way more money for demo funding, which is key for easing investor concerns about risky new tech.
www.washingtonpost.com/climate-envi...
Other clean energy tech got way more money for demo funding, which is key for easing investor concerns about risky new tech.
www.washingtonpost.com/climate-envi...
July 18, 2024 at 1:27 PM
Geothermal developers say they got shafted in the recent bipartisan infrastructure law.
Other clean energy tech got way more money for demo funding, which is key for easing investor concerns about risky new tech.
www.washingtonpost.com/climate-envi...
Other clean energy tech got way more money for demo funding, which is key for easing investor concerns about risky new tech.
www.washingtonpost.com/climate-envi...
Enhanced geothermal has huge potential.
Conventional geothermal power plants sit on top of natural underground hot springs. Enhanced geothermal uses fracking to recreate those rare geologic conditions almost anywhere.
www.washingtonpost.com/climate-envi...
Conventional geothermal power plants sit on top of natural underground hot springs. Enhanced geothermal uses fracking to recreate those rare geologic conditions almost anywhere.
www.washingtonpost.com/climate-envi...
July 18, 2024 at 1:27 PM
Enhanced geothermal has huge potential.
Conventional geothermal power plants sit on top of natural underground hot springs. Enhanced geothermal uses fracking to recreate those rare geologic conditions almost anywhere.
www.washingtonpost.com/climate-envi...
Conventional geothermal power plants sit on top of natural underground hot springs. Enhanced geothermal uses fracking to recreate those rare geologic conditions almost anywhere.
www.washingtonpost.com/climate-envi...
Weather forecasts have gotten a lot better. Today's 7-day high temperature forecast is as accurate as the 3-day forecasts of the 90s.
www.washingtonpost.com/climate-envi...
www.washingtonpost.com/climate-envi...
July 2, 2024 at 1:22 PM
Weather forecasts have gotten a lot better. Today's 7-day high temperature forecast is as accurate as the 3-day forecasts of the 90s.
www.washingtonpost.com/climate-envi...
www.washingtonpost.com/climate-envi...