Extreme Temperature Diary- Thursday May 15th, 2025/Main Topic: Why a Four Day Workweek Will Be Great for Fighting Climate Change

As I discussed in Talking Climate last year, research shows a four-day work week boosts productivity and well-being — AND cuts carbon! One study, for example, found a 10% drop in hours = 8.6% drop in emissions. So Jack's question below is a good one: why aren't we advocating for this more?

Katharine Hayhoe (@katharinehayhoe.com) 2025-05-14T13:52:01.139Z

https://www.talkingclimate.ca/p/holding-fossil-fuels-accountable

Holding fossil fuels accountable

New climate laws, why we need more trees in cities, and how a four-day workweek helps fight climate change

Katharine Hayhoe's avatar

Katharine Hayhoe

Last week I highlighted how Iceland has a new climate president, and how, as an IPCC author, Mexico’s new president is also very aware of climate risks and the need for climate solutions (although she also supports the development of infrastructure and oil & gas that negatively impacts biodiversity and climate).

This week, I learned that two of the members of Worldwide Weather, a platform that connects broadcast meteorologists around the world to share the latest climate information, were recently appointed to government positions as well!

In Greece, meteorologist Sakis Arnaoutoglou was just elected to his country’s delegation to the EU Parliament. In Taiwan, atmospheric scientist ChiMing Peng will soon become the new minister of environment. His portfolio includes climate change, and he’s emphasized that his priorities include accelerating Taiwan’s net-zero transition and “rolling out a clear carbon pricing road map to help implement President-elect Lai Ching-te’s green growth strategy.”

They’re not the first; in Chile, climate scientist and IPCC author Maisa Rojas Corradi has served as minister of the environment since 2022. I’d love to see this trend continue!

GOOD NEWS

In the state of Vermont, a new law will force fossil fuel companies to pay for climate-related damage. This is the first such law of its kind in the US. The Vermont legislature, which is controlled by Democrats, passed the bill, and opponents expected the governor, a moderate Republican, to veto it. But instead, Gov. Phil Scott let it become a law without his signature. “I understand the desire to seek funding to mitigate the effects of climate change that has hurt our state in so many ways,” Scott wrote in a letter.

In the UK, Edinburgh has banned advertisements for airlines, SUVs, cruise lines, and oil companies from appearing in the city. The city will ban ads for “high-carbon products and services” that “undermine the council’s commitment to tackling the climate emergency.” The ban encompasses “all firms and associated sub brands or lobbying organizations that extract, refine, produce, supply, distribute, or sell any fossil fuels.”

And the other week, UN Secretary General António Guterres called for a ban on fossil fuel advertising. Research has already shown that one in five premature deaths world-wide are the result of air pollution from burning fossil fuels. Let that sink in a minute – one in five deaths! So, just like with cigarettes, why should we allow the use of products with such serious health risks to be actively promoted? More of this, please!

NOT-SO-GOOD NEWS

We’ve known for a long time that lower-income neighbourhoods – in the United StatesCanada, and beyond – tend to be much hotter during heatwaves than higher-income neighbourhoods in the same city. The number one reason for this is the lack of green space and tree cover, much of which is the legacy of racist zoning and lending practices stretching back a century or more.

A recent study by some of my colleagues at The Nature Conservancy compared the lack of tree cover and its health impacts in nearly 6,000 cities across the US. They found that this disparity in nature-based cooling across neighbourhoods leads to hundreds more deaths and 30,000 more doctors’ visits in neighbourhoods inhabited predominantly by people of color.

Here’s the good news, though: they also found that this disparity in health outcomes due to lack of green space could be neutralized by planting 1.2 billion new trees, which would also have a cooling effect that would reduce power demand by the amount it takes to power some 150,000 homes.

As I’ve mentioned before, you can help just by switching your search engine to Ecosia: they’ve planted 208 million trees so far. And, anyone have a direct link to Mr. Beast and #TeamTrees?! They’re up to 24 million trees and we need them on this too!

WHAT YOU CAN DO

I was happy to hear of a new study out of the UK, finding that a four-day workweek has benefits for the climate. Workers reported being 22 percent more productive each day. There was also a 21 percent reduction in the number of miles driven, not to mention a reduction in the pollution associated with commuting, too. And, although not quantified, I’d bet many also experienced positive impacts on their well-being, families, and health.

In Canada, the David Suzuki Foundation has had a four-day workweek in place since the nonprofit was founded in 1990. At The Nature Conservancy, we have a “Nature Fridays” program that allows people to front-load their work Monday through Thursday, and encourages them to spend Fridays outdoors (which, as Heather McTeer Toney mentioned when she guest-edited this newsletter, is great for both your mental and physical health).

“We get a climate benefit, and people get a well-being benefit. So I’d like to see work-time reduction in the climate discourse in a much bigger way than it has been,” Juliet Schor, an economist and sociologist at Boston College and lead researcher at 4 Day Week Globaltold Yale Climate Connections. A 10 percent drop in work hours led to an 8.6 percent drop in carbon emissions, a study co-authored by Schor in 2012 found, the BBC reported.

What can you do? Take this info to work with you and encourage them to adopt a four-day workweek or, if they can’t do that (and not everyone can), encourage them to keep flexible work policies in place, including allowing working from home where possible.

☁️Antarctic atmospheric rivers are projected to double in frequency and cause 2.5 times more precipitation by 2066–2100 due to rising atmospheric moisture@michelle-maclennan.bsky.social Read more here 👉: www.nature.com/articles/s43…

Communications Earth & Environment (@commsearth.nature.com) 2025-05-15T14:53:10.359Z

"Climate science for 2050" | I joined w/ a list of leading climate experts for this review in #FrontiersInClimate:www.frontiersin.org/journals/cli…

Michael E. Mann (@michaelemann.bsky.social) 2025-05-15T13:41:36.894Z

1/7 Check out a new UCS report, "Decades of Deceit: The Case Against Major Fossil Fuel Companies for Climate Fraud and Damages." Drawing on dozens of internal industry documents, it provides a decades-long review of the fossil fuel industry's campaign of disinformation and delay on climate action:

Union of Concerned Scientists (@ucs.org) 2025-05-14T13:52:22.526Z

BFD… You got to love Hansen: "Earth’s albedo has decreased .5%. We described this change as a BFD because it has staggering implications. A 1.7 W/m2 increase of absorbed solar energy is huge. If it were a climate forcing, it would be equiv to a CO2 increase of 138 ppm" mailchi.mp/caa/large-cl…

Jeff Berardelli (@weatherprof.bsky.social) 2025-05-15T00:49:10.163Z

“We’re not just talking about lifting people out of extreme poverty; we’re looking at futures with high development ambition, ensuring decent living standards as a minimum for everyone worldwide.” @kikstra.bsky.social, @iiasa.ac.at

Chris McDermott (@chrismcdermott.bsky.social) 2025-05-13T22:17:04.852Z

New IIASA-led research shows that achieving sustainable development and climate targets at the same time is not only possible but necessary.“Eradicating poverty and protecting the planet are not conflicting goals,” says lead author @kikstra.bsky.social.🔎 iiasa.ac.at/news/may-202…

IIASA (@iiasa.ac.at) 2025-05-13T12:46:37.879Z

What behavioral strategies motivate environmental action?A collaborative study from researchers w/ @appc.upenn.edu @asc.upenn.edu, @penncssm.bsky.social & #PennSAS tested 17 strategies in an ‘intervention tournament.’ | New via #PennToday @upenn.bsky.social penntoday.upenn.edu/news/annenbe…

Michael E. Mann (@michaelemann.bsky.social) 2025-05-13T20:53:26.234Z

I just created a quick map depicting which portions of the United States are now (as of today) or will imminently be (by early June) without 24/7 local National Weather Service coverage (per Washington Post reporting). #CAwx #CAfire #CAwater #ORwx #AKwx #WYwx #KSwx

Daniel Swain (@weatherwest.bsky.social) 2025-05-15T17:24:30.000Z

Some NWS offices have staff listings showing vacancies. Some current understaffing numbers:Houston: 44% Miami: 20% Key West: 20%Tampa Bay: 25%Jacksonville: 9%Charleston: 22%Wilmington: 21%Newport, NC: 14%Wakefield, VA: 0% Boston: 19%Lake Charles: 0% Corpus Christi: 11% Brownsville: 9%

Dr. Jeff Masters (@drjeffmasters.bsky.social) 2025-05-15T16:18:35.839Z

Heading into hurricane season, the Houston NWS office is 44% understaffed (11 vacancies for a staff of 25), with no permanent management staff: meteorologist-in-charge, warning coordination meteorologist, science and operations officer, and electronics system analyst. www.weather.gov/hgx/office_s…

Dr. Jeff Masters (@drjeffmasters.bsky.social) 2025-05-15T15:25:47.521Z

The first impressive image of the #LacduBonnet #wildfires in #Manitoba – that burned almost 4000 ha – was captured on May 14th by #Copernicus #Sentinel2. Due to #drought conditions, this wildfire season in #Canada could be more intense than usual. #climateemergency

(@adamplatform.bsky.social) 2025-05-15T18:26:47.139Z

Tampa Bay bringing the heat! These are expected high temps in Tampa. Heat Index will near 100 by weekend into next week. IF we get a break, and that's a big IF, it won't be until "next" weekend. Summer heat could be here to stay…

Jeff Berardelli (@weatherprof.bsky.social) 2025-05-13T20:35:45.110Z

Could this be the biggest climate story of the year?For the first time on record, China's emissions are falling due to clean energy growth, not slow power demandFull analysis + outlook by Lauri Myllyvirta:www.carbonbrief.org/…1/7

Simon Evans (@drsimevans.carbonbrief.org) 2025-05-15T12:27:32.000Z

"Do look up: how science and international cooperation closed the ozone hole" | Really important editorial in @nature.com (w/ a nod to @ghostpanther.bsky.social): www.nature.com/articles/d41…

Michael E. Mann (@michaelemann.bsky.social) 2025-05-15T17:58:54.508Z

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