John T. Abatzoglou

John Abatzoglou

@climate-guy.bsky.social

1.4K followers 210 following 3 posts

Tracking weather and climate and why they matter
climatologylab.org

Videos

Environmental science 63%

Geography 18%

Posts Replies Media Videos

Reposted by John T. Abatzoglou

Mike Flannigan @mikeflannigan.bsky.social · Oct 9

🔥 New fire paper out - Fire regime changes in Canada: an update. Overall, the big-picture trends remain consistent: annual area burned, the annual number and size of large fires are still increasing, but the total number of fires for all sizes continue to decline.
cdnsciencepub.com/doi/10.1139/...

Fire regime changes in Canada: an update

Given the recent rise in extreme fires, we present an update to a previous Canadian wildfire trend analysis (1959-2015) with nine additional years of data (2016-2024), an improved area burned dataset,...

cdnsciencepub.com

Reposted by Ben Bond‐Lamberty, John T. Abatzoglou

Calum Cunningham @calxcunningham.bsky.social · Oct 2

Out today in @science.org, we show wildfire disasters have surged in the last decade, as climate change intensifies fire weather and exacerbates other vulnerabilities.

📄 www.science.org/doi/10.1126/...

With @pyrogeog.bsky.social @climate-guy.bsky.social

Climate-linked escalation of societally disastrous wildfires

Climate change and land mismanagement are creating increasingly fire-prone built and natural environments. However, despite worsening fire seasons, evidence is lacking globally for trends in socially ...

www.science.org

Reposted by Ben Bond‐Lamberty, John T. Abatzoglou, Brian J. Harvey , and 1 more Ben Bond‐Lamberty, John T. Abatzoglou, Brian J. Harvey, Mukesh Kumar

Matt Jones @mattwjones.bsky.social · Aug 22

🔥 Our new research in @science.org shows that people are increasingly exposed to fires globally, driven by overlapping shifts in where #fires occur and where people live.

But changes in exposure vary hugely by region and are shaped by different population dynamics.👇

www.science.org/doi/10.1126/...

Increasing global human exposure to wildland fires despite declining burned area

Although half of Earth’s population resides in the wildland-urban interface, human exposure to wildland fires remains unquantified. We show that the population directly exposed to wildland fires incre...

www.science.org

Reposted by Monica G. Turner, Ben Bond‐Lamberty, John T. Abatzoglou , and 5 more Monica G. Turner, Ben Bond‐Lamberty, John T. Abatzoglou, Kevin J. Anchukaitis, Peter Brown, Brian J. Harvey, Drew Peltier, Elizabeth R. Pansing

GrumpyUncleSean🔥 @grumpyunclesean.bsky.social · Aug 21

1/4
Please see our new paper just published in Global Change Biology: “Intensifying fire season aridity portends ongoing expansion of severe wildfire in western US forests”. 🧪🌍🔥

Intensifying Fire Season Aridity Portends Ongoing Expansion of Severe Wildfire in Western US Forests

Area burned by wildfire has increased in western US forests over recent decades. However, high-severity fire—fire that kills all or most trees—is also an important metric of fire activity given its d...

doi.org

Reposted by Monica G. Turner, John T. Abatzoglou

Marco Turco @marco-turco.bsky.social · Jul 11

Happy to share our new paper: we show that human-caused climate change is raising the odds of extreme climate-driven fire years across forested regions of the globe
@climate-guy.bsky.social @pyrogeog.bsky.social
rdcu.be/evJkX
#ClimateChange #Wildfires

Climate change has increased the odds of extreme regional forest fire years globally

Nature Communications - The authors show that extreme fire years in global forests align with rare fire weather extremes. Climate change has made such extremes 88-152% more probable. These findings...

rdcu.be

Reposted by Ben Bond‐Lamberty, John T. Abatzoglou, Kevin J. Anchukaitis , and 1 more Ben Bond‐Lamberty, John T. Abatzoglou, Kevin J. Anchukaitis, Matthew A. Kaproth

Emily Williams @emilywilliams.bsky.social · Jul 2

New study w/ @climate-guy.bsky.social ! Increased evaporative demand due to climate change has increased crop irrigation demand; in the Central Valley, this additional irrigation demand is equivalent to ~11% of the region's observed groundwater loss.

agupubs.onlinelibrary.wiley.com/doi/10.1029/...

Climate Change Increases Evaporative and Crop Irrigation Demand in North America

The strongest climate change-driven trends in ETo are found in the water-limited southwestern and central regions of North America Forced increases in ETo have primarily been driven by increased ...

agupubs.onlinelibrary.wiley.com

Reposted by John T. Abatzoglou

Nature Reviews Earth & Environment @natrevearthenviron.nature.com · Apr 11

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]

Wildfires in 2024 - Nature Reviews Earth & Environment

Wildfire burned area was 367 Mha in 2024, ranked 17th since 2001. An estimated 1,965 Tg C was released from these fires, 41% of which came from the Americas, far exceeding their usual 25% contribution...

www.nature.com

Reposted by John T. Abatzoglou

Dr. Crystal A. Kolden @pyrogeog.bsky.social · Apr 9

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.

QR code to register for the zoom seminar and get full schedule.

Reposted by John T. Abatzoglou

Sarah Kaplan @sarahkaplan48.bsky.social · Mar 11

Tree ring records show that wildfires used to consume a lot more acreage, before colonists and governments started suppressing them.

But human-caused warming has made today's fires much more violent and destructive, putting ecosystems and communities in peril.
www.washingtonpost.com/climate-envi...

What old trees can teach us about modern wildfires

A recent study underscores how humanity’s success in extinguishing fires has allowed dead wood and other flammable material to pile up in ecosystems, putting communities at greater risk of catastrophi...

www.washingtonpost.com

Reposted by John T. Abatzoglou

Cong Yin @cyinglobe.bsky.social · Mar 3

An integrated, interactive, and extensible platform for detecting and visualizing compound events. Our new paper in Scientific Data is now available: doi.org/10.1038/s415....
Thanks to my coauthors Mingfang Ting, @kornhuber.bsky.social, Radley M. Horton, Yaping Yang, and Yelin Jiang!

CETD, a global compound events detection and visualisation toolbox and dataset - Scientific Data

Scientific Data - CETD, a global compound events detection and visualisation toolbox and dataset

doi.org

Reposted by John T. Abatzoglou

Benjamin Cook @dustybowl.bsky.social · Feb 27

New work with Dimitr Kalashnikov, Deepti Singh (@climatechirper.bsky.social) and Mingfang Ting!

We demonstrate that record low soil moisture and global warming were major contributors to a record breaking heatwave in Mexico+Texas in 2023

agupubs.onlinelibrary.wiley.com/doi/full/10....

Contributions of Atmospheric Ridging and Low Soil Moisture to the Record‐Breaking June 2023 Mexico‐Texas Heatwave

A heatwave with record-breaking intensity, persistence, and spatial extent affected Mexico and Texas during June 2023 Circulation, record-low soil moisture, and their interaction explain most of ...

agupubs.onlinelibrary.wiley.com

Reposted by Jill S. Baron, John T. Abatzoglou, He Yin , and 2 more Jill S. Baron, John T. Abatzoglou, He Yin, Victor Danneyrolles, Joan Dudney

GrumpyUncleSean🔥 @grumpyunclesean.bsky.social · Feb 10

1/n
Please see our new paper in Nature Communications!

We used 1,851 tree-ring fire-scar sites and contemporary fire perimeters to quantify the prevalence of wildfire from 1600-1880 compared to 1984-2022. 🧪🌍🔥

Our key findings are as follows ...

A fire deficit persists across diverse North American forests despite recent increases in area burned - Nature Communications

Across many North American forests, recent years with exceptional area burned are not unprecedented when considering the multi-century perspective offered by fire-scarred trees. Nevertheless, abundant...

www.nature.com

John Abatzoglou @climate-guy.bsky.social · Jan 10

Santa Ana winds are sort of the opposite of an Ice Cube. And, yesterday (and the day prior) was NOT a good day. climatetoolbox.org/tool/climate...

John Abatzoglou @climate-guy.bsky.social · Dec 19

Tule fog fading with an extra push from the Fresno heat island

John Abatzoglou @climate-guy.bsky.social · Nov 27

Thanks @nathangilles.bsky.social for covering this new work by @emilywilliams.bsky.social

Reposted by John T. Abatzoglou

Deepti Singh @climatechirper.bsky.social · Nov 22

⚡New paper on predicting #lightning 🌩️ in the western US using CNNs with @dmitri-climate.bsky.social @zacklabe.com @climate-guy.bsky.social and others.

Key finding: CNN are quite skillful at predicting lightning here.

We are using these to develop projections of lightning-ignited #wildfires🔥.

Total number of CG lightning days predicted by locally trained convolutional neural networks, areas of over and under prediction and interannual correlation between actual and predicted CG lightning days

Reposted by John T. Abatzoglou, Fernando Pulido

Reposted by John T. Abatzoglou

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