Yan Boulanger
@trailgeek.bsky.social
Research scientist in Forest Ecology🌲| Working on climate change stuff and wildfires🔥| Like trail running and singing in my car
Q: Have winter (Dec-Feb) temperatures have changed (trend) over the last 85 years? A: F*ck
Imagine if they also had to deal with the Phoenix pay system...
Confirmed with a source. Here's a screenshot of the email sent to staff today.
While all of this is happening to our scientific agencies, the current extent of sea ice globally remains at record low levels... More visuals at zacklabe.com/global-sea-i...
Sunday ice update - #Arctic sea ice extent is currently the lowest on record (JAXA data) • about 740,000 km² below the 2010s mean • about 1,340,000 km² below the 2000s mean • about 1,720,000 km² below the 1990s mean • about 2,260,000 km² below the 1980s mean Plots: zacklabe.com/arctic-sea-i... 🌊
Just another typical late winter season in the Pyrocene -- "Wildfires rage across the Carolinas...More than 175 wildfires burning across SC and additional fires in NC... Much of eastern US seaboard under increased fire risk." www.yahoo.com/news/wildfir...
Wildfires rage across the Carolinas; SC governor issues state of emergency
The National Weather Service issued advisories on Sunday from Georgia to New Jersey warning of an increased risk of wildfires.
yahoo.com
December-February 2024-25 temperature ranking since 1895-96 according to Prism climate data. Globally, this was the 2nd warmest Dec-Feb period, but the Contiguous U.S. was the outlier. Congrats!
This is very concerning. "Earth’s plants and soils reached peak carbon dioxide sequestration in 2008 but proportion absorbed has been declining since, study finds"
Plants losing appetite for carbon dioxide amid effects of warming climate
Earth’s plants and soils reached peak carbon dioxide sequestration in 2008 but proportion absorbed has been declining since, study finds
theguardian.com
Another paper showing climate shocks lead to support for climate action among conservatives. Analyzing data collected in Florida, the paper finds Republican positions change after personally experiencing loss from climate-exacerbated extreme events. www.sciencedirect.com/science/arti...
Such conclusions also apply to #forest landscape #model projections over species distribution models
Interesting work by van der Meersch et al. out in Ecology Letters, nicely illustrating that process-based models are more robust than correlative models for predicting species distributions under novel climatic conditions doi.org/10.1111/ele....
Looking at temperature anomalies over the last month (left), 3 months (center), and 12 months (right) across the #Arctic... Data from doi.org/10.24381/cds... ⚒️
Ice Watch - Time to start tracking the annual maximum #Arctic sea ice extent. A new record is definitely possible this winter. Stay tuned. Follow the daily data at zacklabe.com/arctic-sea-i.... Data from JAXA. ⚒️🥼❄️
A trifecta of fire-friendly climate conditions fueled the January 2025 fires around Los Angeles: back-to-back wet winters that boosted vegetation, a record-dry fall, and extremely strong Santa Ana winds. See the map for how drought helped set the stage. www.climate.gov/news-feature...
🔥🌲 Feux de forêt & climat : un sujet brûlant au Machin Club ! J’ai eu le plaisir de discuter de la saison record de 2023 et du rôle de la science pour mieux comprendre ces événements extrêmes. 🌍🔥 🎥 À voir ici 👉 www.youtube.com/watch?v=q_c0... #FeuxDeForêt #Climat #ScienceEnAction #MachinClub
Alerte climat - Les arbres
YouTube video by Machin Club
youtube.com
Looking back at temperatures averaged over the last 3 months - find your location... 🟥 warmer than average 🟦 colder than average Dataset (NOAAGlobalTempv6) described in doi.org/10.1175/BAMS...
❗️Highest temperature ever recorded this early in the year across the Northern Hemisphere.
1/ 🌲🔬 New Research Alert! 🌡️🦋 #ClimateChange is reshaping forest ecosystems, and the spruce budworm (Choristoneura fumiferana), a major boreal forest defoliator, is feeling the heat! 🔥 Our latest study in PLOS Climate reveals some striking trends. 🧵👇
Monday ice update - #Arctic sea ice extent is currently the *lowest* on record (JAXA data) • about 780,000 km² below the 2010s mean • about 1,450,000 km² below the 2000s mean • about 2,010,000 km² below the 1990s mean • about 2,370,000 km² below the 1980s mean Plots: zacklabe.com/arctic-sea-i... 🧪
Sometimes it is only one side of the #Arctic that experiences anomalously low conditions during winter, but this year we are seeing the sea ice edge on *both* the Atlantic & Pacific sectors at very low levels for this time of year. This is contributing to the historic record low for early February.
How unusual were 2023 and 2024 compared to the global warming trend, averaging an increase of around 0.2°C per decade? Dive into the analysis of anthropogenic and natural factors 👉 bit.ly/40kQpcz
More acres have been burned by wildfires in January 2025 across California than in all the Januarys of the past 30+ years combined. Unreal.
Why I’m not leaving the federal workforce (for now). A thread about my career goals, and how an elementary school student changed my entire worldview.
🚨 After years of development, the new version of #rstats tmap (4) is now available on CRAN! 🎉 Huge thanks to author Martijn Tennekes and all contributors. 🔧 Install: `install.packages("tmap")` 📚 Vignettes: https://buff.ly/4aAYNbq 📖 Book Chapter: https://buff.ly/43TokaF #maps #tmap #rspatial
Interested in how climate model projections have matched up to reality? RealClimate: Comparison Update 2024 www.realclimate.org/index.php/ar...
Comparison Update 2024
One more dot on the graphs for our annual model-observations comparisons updates. Given how extraordinary the last two years have been, there are a few highlights to note. First, we have updated...
realclimate.org
Despite the recent cold in the USA, and the presence of a (weak) La Niña in the Pacific, January is on track to be the warmest January on record. 😬
Many of us are really feeling helpless. This feeling is why I started @skypeascientist.bsky.social 8 years ago. We were doing the exact same thing then (currently feels worse?). I have an action you can take today. Tell an educator about our program. Connect kids with science in spite of all this.
NSF PRFB POSTDOCS: Pull the remainder of this funding cycle’s stipend, all remaining research funds, and all remaining travel funds (if you have them). Do it before 5PM today. Per instructions from multiple NSF POs. If you’re not already on the PRFB slack, DM me and I’ll send you an invite
This project tracks government attempts to restrict or prohibit scientific research, education, or discussion, or the publication or use of scientific information. Read more about the tracker and related... Or contribute to the database. #science climate.law.columbia.edu/Silencing-Sc...
Silencing Science Tracker | Sabin Center for Climate Change Law
climate.law.columbia.edu
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 ✨...