Dr. Crystal A. Kolden

@pyrogeog.bsky.social

Pyrogeographer. I study wildfire in the era of anthropogenic climate change. Former wildland firefighter. Opinions are my own. *she/her* 🔥🔥🔥

As a fire scientist, I am devastated for my many good friends and colleagues who will be affected by the mass closure of so many research stations and offices. Many will leave the agency. USFS has pioneered so much foundational fire science. The consequences of this will be catastrophic.

We have a 5.9kW solar system for 2,700 sq ft house in HOT 🥵 Fresno, CA. We charge a plug-in hybrid daily. Current house: $24/yr for electricity (PG&E) Old house (no solar): >$6,000/yr Our $20K system is paid for in ~3 yrs. Solar is a scientific miracle. www.motherjones.com/environment/...

Trump is trying to kill solar power—here's how to fight back

Rooftop solar is a clean power miracle. Why are we killing it with red tape?

motherjones.com

More amazing teamwork led by the fantastic @mattwjones.bsky.social to develop a global database of prescribed fire.

Matt Jones@mattwjones.bsky.social · last yr.

New study from my group with stellar international team. A multi-national dataset of prescribed #fires compiled and standardised from national records, with contemporaneous #weather conditions, land cover, fuel bed type, ++, included with each record. www.nature.com/articles/s41...

My theory: some DOGE minion Googled "Hatch Act" and saw the 1939 law preventing political actions by govt employees and said "Let's cut it!" Not realizing, of course, that the 1887 Hatch Act funds agricultural research at Land Grant schools that directly benefits farmers.🙄

Hannah Frank@hannaherf.bsky.social · last yr.

They’re trying to quietly eliminate Hatch Act funding for agricultural schools???? @altusda.altgov.info @aaas.org @asa-cssa-sssa.bsky.social

FY 2026 USDA proposed budget summary

Spent a delightful week in Vienna last month for EGU. What a model for people (not car)-oriented living! 1) Huge car-free areas in the historic city center 2) Amazing public transit system (my 10-yr olds LOVED the subway) 3) Phenomenal bike paths Rating: 14/10 - I would live there! #waroncars

TOMORROW! There's still time to register: 1pm - Introductions and talk by John Mills of @watchduty.org 2pm - A look ahead at the 2025 Fire Season in CA with @climate-guy.bsky.social 2:15pm - Mitigating smoke with Dr. Sandie Ha 2:30pm - Q&A with all speakers MEDIA is welcome. Please join us!

Dr. Crystal A. Kolden@pyrogeog.bsky.social · last yr.

On 4/17 @ucmerced.bsky.social Fire Resilience Center will host John Mills, CEO and co-founder of @watchduty.org AND have discussion with @climate-guy.bsky.social and Dr. Sandie Ha on: 1) The upcoming fire season in CA 2) How you can prepare, esp. for smoke We're streaming it online - join us!

Flyer header that shows a photo of John Mills and states the date and time as April 17, 2025 from 1-3 pm for the 2025 Wildfire outlook.

Climate change continued to have unpredictable impacts on wildfire in 2024. Unexpected shifts, like the Americas producing 40% of C emissions (normally it's <25%), and anomalous events, like the fatal Feb '24 Chile fire or the Pantanal wetlands burning, occur more often.

Nature Reviews Earth & Environment@natrevearthenviron.nature.com · last yr.

Kolden et al. document 2024 wildfires, finding: - 367 Mha burned - Burned area decreased 5.4% from 2023 - Fires released an estimate 1965 Tg C www.nature.com/articles/s43... (rdcu.be/ehnTP) @pyrogeog.bsky.social @climate-guy.bsky.social @mattwjones.bsky.social @ueaenv.bsky.social [6/n]

This is your regular reminder that ALL buildings in California must build to seismic codes, but only those in CALFIRE's designated high hazard areas must build to WUI fire codes. Why the discrepancy? Who the hell knows...but it means the cycle of rebuild and burn again will continue.

Lauren Sommer@lsommer.bsky.social · last yr.

California just released new maps on where homes have to be built with wildfire-resistant materials. But the majority of homes destroyed in the Eaton fire won’t have to use those building codes www.npr.org/2025/03/25/n...

Ed Abbey words to live by: “A patriot must always be ready to defend his country against his government.” “Anarchism is founded on the observation that since few men are wise enough to rule themselves, even fewer are wise enough to rule others.” “Anarchism is democracy taken seriously.”

Worried about wildfires this year? You should be. Preparedness is the absolutely most effective way to mitigate disasters, and the firing of thousands of employees and hiring freeze means that there is almost no one to prepare. WHEN wildfires start (not if), suppression will be a mess.

Jim Whittington🔥@jimwhittington.bsky.social · last yr.

IMTs are quietly talking about what the current political environment means for this year's wildland fire suppression efforts, but it deserves a larger and more public consideration. 1/

Wanted to reshare the webinar event associated with this white paper release. You can watch the event here: www.youtube.com/watch?v=QkAP... All of the messages discussed by me and the panelists require greater focus after what we have just experienced.

A New Strategy for Addressing the Wildfire Epidemic in California | Webinar

YouTube video by Stanford Woods Institute for the Environment

youtube.com

Dr. Crystal A. Kolden@pyrogeog.bsky.social · 2y ago

For the thousands of people asking "How do we fix this #wildfire problem?", @michaelwara.bsky.social wrote an excellent white paper 3 years ago that neatly lays out the basics of the multipronged approach. It still holds. @stanfordwoods.bsky.social hosted a discussion panel as well.

In Sept 2020, in the wake of a record CA fire season, I wrote an opinion piece for @nature.com about the need to focus on the human metrics of fire, not the acres burned. The #LAFires underscore that our obsession with size fails to convey the scope of the impacts. đź§µ www.nature.com/articles/d41....

Wildfires: count lives and homes, not hectares burnt

Smarter ways to assess fires will bring better methods of preventing damage.

nature.com

An important facet of the fire building code discussion is that it only applies to areas that CALFIRE deems high fire hazard; it's not blanket. Many urban homes burned in recent years were't included. For seismic codes, every house in the state must comply no matter how far from a fault line.

Heatmap News@heatmap.news · 2y ago

California’s 7A building code is the most robust in the country. Here’s why that didn’t stop the LA fires, from @zeitlin.bsky.social.