Paul Zander

@zanderland.bsky.social

Husband and cat dad. Born at 353 ppm 🌎 Earth lover. Researcher interested in paleoclimate, biogeochemistry, carbon cycle, lakes, soils. Skier, climber, hiker. Fan of music and basketball. https://zanderland.wixsite.com/drpaulzander

In recent weeks, there has been a remarkable surge in large, intense, fast-moving, and unfortunately in many cases destructive/deadly wildfires in multiple Northern Hemisphere regions spanning a wide range of climates & ecologies, but they all share one key commonality. [Thread]

Zooming in on Oregon, the enormous scope of ongoing wildfire outbreak is clear. Numerous large smoke plumes from dozens of active fires--which have now burned over 1 million acres in Oregon alone--are casting a broadening pall across the interior Northwest & N. Rockies. #ORwx

“California has much more fire-driven forest loss than people understand. It’s happening more in high-elevation, climate-sensitive areas that protect our watersheds, and there’s almost nothing being done about it.”

Wildfire-Driven Deforestation Rates in California Among Highest in World

California has one of the highest rates of wildfire-driven deforestation in the world, and the trend has accelerated over the past three decades, according to a UC Davis study.

ucdavis.edu

...And, again today, a huge swath of the continental United States clear across from the Pacific Coast to Mississippi River is experiencing all-time March monthly record heat. Some locations are so hot that they are actually exceeding *April* all-time record highs. Incredible.

Map of U.S., from coolwx.com, showing locations currently experiencing record-breaking temperatures. There are countless such locations in the Western U.S., with hundreds of red dots (locations breaking daily record highs) and countless pink dots (locations breaking March monthly record highs). The region of record heat extends from the Pacific Coast to the Mississippi River, and from Canada to Mexico. The region of red and pink dots is vastly larger even than yesterday's.

The official NOAA stats out this week confirm that winter 2025-26 was the warmest on record across a huge portion of the western and central U.S., which has contributed to extremely low mountain snowpack & worsened the CO River crisis. Meanwhile, record March heat is in forecast.

Official map from NOAA depicting the relative rank of winter 2025-2026 temperatures at a county level across the contiguous U.S. Many counties in the western and central U.S. are depicted in dark red color, signifying record-warmest winter. All other counties in the west and central U.S. are depicted in dark orange colors, signifying a "near record warm" rank.

🚨 Happening NOW at #AGU25! Town Hall on Protecting NSF NCAR - UCAR President Antonio Busalacchi discusses what the nation stands to lose if NSF NCAR is dismantled and steps being taken to support this critical community resource. 📍 La Nouvelle C (NOLA CC) ⏰ 1:00-1:30pm #AGUEPSP #EPSPatAGU25

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What a pleasure and a privilege to contribute to @pages-ipo.bsky.social magazine with @zanderland.bsky.social And, among the others, there is some Lake Żabińskie on the cover!

PAGES (Past Global Changes)@pages-ipo.bsky.social · 9mo ago

🥳 It's out! The latest PAGES Mag on "New Analytical Techniques in #Paleoscience" is online! 🌍 This issue highlights how novel imaging methods and machine-learning approaches are revolutionizing paleoscientific research and expanding our ability to decode past Earth’s history. 🔗 shorturl.at/LOJj5

I am currently seeking a Lab Manager for our Organic Geochemistry Lab at the University of Arizona! Full time position with benefits. If you have a chemistry/biology/geology degree and like fixing things and working with students, this position could be for you! arizona.csod.com/ux/ats/caree...

Laboratory Coordinator I - Geosciences

Maintenance and repair of the Organic Geochemistry Laboratory equipment, including but not limited to gas chromatographs, liquid chromatographs & ...

arizona.csod.com

I am one of these NSF postdocs. NSF has frozen everyone’s access to their salaries and research stipends (that were already awarded) with no information about when they might be expected to be unfrozen. It still appears like we are expected to continue doing our work though.

Katie Mack@astrokatie.com · 2y ago

Apparently all the PhD researchers holding prestigious NSF-funded research fellowships are having their salaries withheld until some unspecified time when the leadership figures out how to eliminate any grant funding that doesn’t align with the president’s political ideology.

For my first scientific post here, I want to talk about the Phanerozoic temperature record we published last Fall, which unfortunately has been making rounds in the climate denier circuit 👀 First though hopefully you can appreciate the beauty of this reconstruction ✨...

Earth's temperature history for the past 500 million years

Here's a schematic I published in this 2021 piece to illustrate how even a modest delay in onset of rainy season in Southern California can dramatically amplify wildfire risk by lengthening seasonal overlap between dry vegetation and strong offshore winds during Oct-Jan. #CAfire

Schematic from Swain 2021 depicting how even a modest (1-month) delay in the Southern California rainy season can greatly amplify wildfire risk by increasing the temporal/seasonal overlap between critically dry vegetation and the occurrence of strong, dry offshore (downsloping) winds.
Daniel Swain@weatherwest.bsky.social · 2y ago

In fact: In a 2021 piece, I discussed how there is already evidence that this "dry & windy" overlap has already increased from autumn and (episodically) into early winter--especially across Southern California. #CAwx #CAfire agupubs.onlinelibrar...

Our paper on "Hydroclimate volatility on a Warming Earth" is out in Nature Reviews Earth & Environment. We assess existing scientific literature & conduct new analysis--concluding that "#HydroclimateWhiplash" is increasing due to #ClimateChange. [Thread] www.nature.com/artic...

Hydroclimate volatility on a warming Earth

Nature Reviews Earth & Environment - Rapid transitions between extreme wet and extreme dry conditions — ‘hydroclimate whiplash’ — have marked environmental and societal...

nature.com