Alexander Ač

Map of global land showing gridded data of changes in Fire Weather Season Length, with increases of over 40 days per year in south-western North America, much of South America, eastern and southern Africa, south-eastern Europe and central and eastern Australia. Hardly anywhere has a decreased fire season length.

Southern California now sees longer fire weather seasons, like many other places worldwide

Human-caused climate change means hot, dry, windy conditions happen more often, priming landscapes to burn more easily if ignition occurs

Matt Jones et al 2022 agupubs.onlinelibrary.wiley.com/doi/10.1029/...

Rapid climate action is needed: comparing heat vs. COVID-19-related mortality Scientific Reports - Rapid climate action is needed: comparing heat vs. COVID-19-related mortality

🌡️🔥Climate change isn't a distant threat—it's a public health crisis now. Our study shows heat-related deaths in many cities could surpass annual COVID-19 deaths in just 5–10 years at 3°C warming. Urgent action is needed!

👉 rdcu.be/d5rnL

@natureportfolio.bsky.social #scientificreports

Check this important new paper led by @fuldenbatibeniz.bsky.social, and co-authored by @afsribeiro.bsky.social @gasparrini.bsky.social @anavicedo9.bsky.social and many further colleagues in climate and health science!

www.nature.com/articles/s41...

I the name Waterman?? :-)

Hollywood is burning... so yes.

Now that more countries have submitted national GHG inventories in the latest format, I'm starting to write a bit of code to compile it all.

Initial impressions: these sheets are better organised, but there are still so many quality of life improvements to make...

unfccc.int/ghg-inventor...

a monkey holding a smiley face a butterfly and an @ symbol Alt: a monkey holding a smiley face a butterfly and an @ symbol

I compared 22 identical climate-related posts on Threads vs Bluesky over the last 3 months, and the difference is shocking.

Normalized engagement on Threads dropped nearly 2/3 + my following dropped, while Bluesky engagement held steady + following quadrupled.

What’s driving this?

Read on! 🧵

Anybody writing about 2024 temps? Lets see... :-)

Europe annual climate warming stripes.

Less ice, more trees.

Vicious cycle

Each year, I adopt 2 new climate-friendly habits.

Originally, I focused on reducing my carbon footprint.

Then, I looked at how to catalyze change at scale: communicating, engaging with others, supporting climate action groups.

This year, I’m going deeper, focusing on what powers our fight: love.

Yeah, not permanent, some still say. Well, sure.

Now you can download all the monthly car sales data for all countries on my webpage in a single CSV file.
robbieandrew.github.io/carsales/

Vertical cross section (latitude vs. pressure) plot showing zonal mean temperature trends for the Northern Hemisphere in Octobers from 1979 to 2022. The Arctic is warming the fastest. The troposphere is warming in all regions and the stratosphere is cooling overtop all regions.

Warming prominently extends vertically aloft into the lower/mid-troposphere over the Arctic in October (i.e., notable Arctic amplification temperature trends).

Data from ECMWF ERA5 reanalysis at cds.climate.copernicus.eu/cdsapp#!/dat... ; possible influences of this warming: doi.org/10.1029/2020...

September 2023 Temperature Update 🔥

Warmest September & largest anomaly ever measured, shattering previous September record.

Warming since August concentrated in polar regions.

Near certain that 2023 becomes the warmest year.

Likely 2023 exceeds 1.5 °C.

berkeleyearth.org/september-20...