Jonathan Overpeck

@greatlakespecktwo.bsky.social

Environmental/Climate scientist for 35+ years; NAS Member. Samuel A. Graham Dean, @UMSEAS @UMICH. Tweets my own. Thinking grad school? Join us at @UMSEAS.

The costs of climate change are mounting: “The plan allows for cuts of up to 3 million acre-feet a year among the states in the river’s Lower Basin — Arizona, California and Nevada. That’s nearly twice what those states have offered to conserve” apple.news/AceW4L7NPTZy...

Feds release long-awaited plan to fight Colorado River water crisis — USA TODAY

The Bureau of Reclamation released its long-awaited Colorado River drought plan, targeting Lower Basin states for cuts.

apple.news

Not the first, and not the last. Climate change is drying up more and more places. “It’s like a slow death, instead of an actual emergency happening right in front of your eyes where you can actually help.” www.washingtonpost.com/nation/2026/...

A desert town may run out of water. Others could face the same fate.

An Arizona community nearly dried up and imposed strict limits, and its crisis may be a glimpse of the West’s future.

washingtonpost.com

Climate change impacts are accelerating: “It’s like hitting a climate system with a big hammer whereas in the past we hit it with little taps, So I worry that we might be underestimating how bad it will get and how soon it will get really bad.” www.michiganpublic.org/environment-...

Climate change worsens wildfire conditions in Michigan

Michigan has always had dry spells, but they have become longer and more severe. Climate scientists believe Michigan fires may soon resemble the fires that happen annually out west.

michiganpublic.org

Michigan is a relative climate haven, but... "Protecting the future of Michigan and the planet should unite us all. It’s on all of us to decide what comes next. It’s time to act like your next Pure Michigan summer depends on it, because it does." www.thetimesherald.com/story/opinio...

Michigan health plagued by wildfires, smokes and floods | Opinion

Michiganders have been suffering from hazardous wildfire smoke, a cyclosporiasis outbreak and floods. They are not mere coincidences.

thetimesherald.com

Sadly true: “As long as humans continue to burn fossil fuels, global temperatures will increase, droughts will worsen, and there will be bigger, more frequent wildfires and smoke events.” It will get worse unless we phase out fossil fuel use. www.nytimes.com/2026/07/16/w...

A Warmer World Will Be a Smokier One

Higher temperatures and drought conditions are contributing to more intense wildfires and extending the summer fire season in North America.

nytimes.com

This is just the start if we don’t halt climate change: “On average 24,100 people died each year in the Lower 48 states between 2006 and 2020 due to long-term exposure to tiny particles from wildfire smoke” stop complaining about Canadians and get to work. apnews.com/article/wild...

Wildfire smoke kills tens of thousands of people a year. Here's how it attacks the body

Wildfire smoke, which is increasing in the Northern Hemisphere as the climate warms, attacks nearly every system in the body.

apnews.com

Today's headlines aren't separate stories. Wildfires. Smoke. Cyclospora. Line 5. They're reminders that the health of our environment shapes the health of our communities. Clean air. Safe food. Fresh water. The science is clear. The solutions exist. Now we need the will to act.

Bild

When we say the burning of fossil fuels is cooking the planet figuratively and literally, we mean it. Heatwaves, extreme rainfall/flooding, megadrought, and unprecedented wildfire are all being made more and more dangerous by the burning of fossil fuels. apple.news/AHuKzb51mQ26...

Dangerous wildfire smoke continues with air quality alerts in at least 17 states — ABC News

Detroit and Minneapolis rank among the top major cities for poor air quality.

apple.news

Reducing over-fertilization of farm fields has multiple benefits. E.g.: "When fields get too much fertilizer, nature’s once-vibrant microbe communities can lose species and fade. That matters to farmers right now." Could help reduce algal blooms in waterways too. theconversation.com/fertilizers-...

Fertilizers carry a hidden cost for soil’s crucial microbes – using less as prices rise might pay off for farms in unexpected ways

Too much fertilizer disrupts the hidden world of soil-dwelling microbes that were sustaining healthy crops long before synthetic fertilizer was invented.

theconversation.com

This is a scary fact: "The rise in observed temperatures in France has outpaced projections made by climate models, with June maximum temperatures more in line with what was expected for the 2070s." It's going to get worse. www.carbonbrief.org/guest-post-f...

Guest post: France’s June heatwave caused more than 2,700 heat-related deaths - Carbon Brief

In a new analysis, we estimate that the extreme conditions caused more than 2,700 heat-related deaths in France.

carbonbrief.org

"Europe is increasingly paying the costs of a hotter world it has failed to prepare for." In the UD, we also need to work harder to stop climate change from costing more & more, but where we also need to invest in adaptation to reduce costs - both lives & $$. www.theguardian.com/world/2026/j...

Record wildfires in Europe show failure to adapt carries a mounting cost

Scientists call for better land management alongside reduction in greenhouse gases causing the crisis

theguardian.com

“This is the time for local… county… and state government to start to prepare for a significant likelihood of much higher than average sea levels, more disruptive coastal flooding and potentially record-breaking coastal water levels” www.washingtonpost.com/weather/2026...

The Pacific Ocean is running a fever. Why that’s an ominous sign.

A marine heat wave covering an area eight times the size of the United States could soon fuel serious storms and extreme heat.

washingtonpost.com