Director of Impact @GroundworkUSA | affiliate @urichmond | board pres @scottsaddition | alum @OSUCEOAS @Augustana_IL | opinions mine; facts peer-reviewed

Richmond, VA
Jeremy Hoffman retweeted
A millennium-long record from GalĆ”pagos corals suggests that El NiƱo is intensifying as the planet warms, with ENSO variability in the eastern Pacific roughly 37% higher than during the preindustrial era. The findings in Science suggest that climate change is already amplifying one of the world’s most important sources of extreme weather, with potentially growing risks to ecosystems, infrastructure, and human societies. Learn more: scim.ag/46q1YBn
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Jeremy Hoffman retweeted
A recent viral graph found fewer days in the contiguous US above 95F/100F/105F today than in the 1930s. But the graph is misleading – it fails to correct for changing measurement times and techniques, and overstates regional warmth. I take a deep dive at The Climate Brink.
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Jeremy Hoffman retweeted
🚨BREAKING🚨: new study shows that congestion pricing literally saves lives by improving emergency response times
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Jeremy Hoffman retweeted
On this hot fourth of July it is worth reminding folks that its not the sun that's causing global warming. Solar output (as measured by satellites) has been flat over the past 50 years when global temperatures have shot up. Its our emissions of CO2 and other greenhouse gases.
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Jeremy Hoffman retweeted
In case you were wondering, there's no train service in the state of Wisconsin that is faster than it was 100 years ago. Think about that for a minute.
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Jeremy Hoffman retweeted
birders and yimbys are the same movement and haven't been introduced. the thing wrecking bird habitat isn't the six-story apartment, it's the cul-de-sac that bulldozed forty acres of forest so eleven families could each keep a lawn that feeds no insects and therefore no birds
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Jeremy Hoffman retweeted
This Bellevue-Seattle listings comparison is an unbelievably vivid YIMBY map In Seattle, people ask how legalizing all these $700k condos makes housing far more affordable In Bellevue, those condos are illegal & instead they mandate $3M single family homes. There's the answer
Seattle is in a similar situation. While Bellevue is building >3000sqft homes for the rich, Seattle is primarily building for the middle and upper middle class. This will cause an even bigger gap in incomes. Tough to say if it's good or bad.
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Jeremy Hoffman retweeted
ā€œAir pollution fell substantially as Paris restricted car traffic and made way for parks, people-streets and bike-lanes.ā€ Better for the climate, better for health, better for livability and quality of life. Common sense. Such a no-brainer, it’s remarkable that more cities HAVEN’T done the same. washingtonpost.com/climate-s…
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Building shade is as good if not better than tree shade for protecting people from extreme heat stress, especially in areas where big canopy trees are hard to maintain, so taller buildings and shade structures should be a bigger part of our strategy for urban heat resilience
What slightly-unhinged views on urbanism/cities do you hold dearly? Hobby horses and petty beefs?
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Jeremy Hoffman retweeted
Excellent stuff by NYT Ed Board:ā€œTo bring down housing costs, cities and towns need to make two principal changes. First, they should loosen zoning laws to allow more multifamily homes. …Second, cities and towns should make it easier to build where it is already legal.ā€
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Jeremy Hoffman retweeted
There are 0 high-cost, high housing production cities in the US.
legalize more by-right housing!
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Jeremy Hoffman retweeted
IZ (inclusionary zoning) is ā€œvibes based planningā€. IZ is intended to benefit the politician proposing it at the expense of the lower income person needing it.
I'm not aware of a single instance where IZ mandates ushered in broad improvements in housing affordability, but I'm aware of loads of instances in which they crushed housing production. Blue cities/states need to take the evidence seriously and scrap these failed programs.
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Jeremy Hoffman retweeted
Even in the arguably most car dependent metro in the country, there’s a clear demand for walkable spaces and dense urbanism. Stop making it legal to only build car dependent sprawl and then use that reality to say no one demands anything else.
Tad Reeves
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These "requirements to build affordable housing" are a demand that builders rent or sell a percentage of their brand new homes at a loss. This is a tax on new housing that has worsened the housing shortage and increased housing prices in every city where it was implemented.
There are currently six BUILD bills in the state Senate aimed at increasing housing and lowering costs. "Yet there’s one thing missing in each bill: a requirement to build affordable housing," write Carolina Sternberg and Jesse Mumm of DePaul University. chicago.suntimes.com/other-v…
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If it happens ones, it can be a coincidence. If it happens twice, it starts to be a pattern. If it happens 40 times, we have truth! A @EUROCITIES survey across 38 European cities found: lower urban speed limits aren’t slowing cities down. They're just making them work better!
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That Urban Studies paper about how zoning reform only produces modest gains in housing supply was based on extremely shoddy data: of the 180 "major reforms" they examined, 60 were misidentified, 118 were misclassified, and only 2 were real.
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Jeremy Hoffman retweeted
A city that treated the housing crisis like a five-alarm fire made it legal to build so much housing that it actually reduced rent by a lot. Who would’ve guessed?
Austin, Texas, where rents dropped by a full 6 percent over the past year, more than in any other large metro area in the US. The Austin area’s median rent, at $1,274, is back to roughly where it was right before the pandemic — which means that, in 2026 dollars, it’s significantly cheaper than it was in 2019.
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Jeremy Hoffman retweeted
nasa employee: oh hey u guys are back early astronaut: moon's haunted nasa employee: what? astronaut: *loading a pistol and getting back on the rocket-ship* moon's haunted
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Jeremy Hoffman retweeted
not only is congestion pricing working, it’s living proof that government can actually do things that materially improve our lives and the functioning of our society better things are possible!
Congestion pricing has been a huge success. Traffic is down. Business is up. The cameras are staying on.
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