Giorgio Vacchiano
gvacchiano.bsky.social
Giorgio Vacchiano
@gvacchiano.bsky.social
Professor in forest management and planning at University of Milan
Head of the Forest Lab at UniMI
President of Climate Media Center Italia
Reposted by Giorgio Vacchiano
"Study finds planetary waves linked to wild summer weather have tripled since 1950" | Great piece by @borenbears.bsky.social for @apnews.com on our new @pnas.org article (w/ thoughtful comments from @jfrancisclimate.bsky.social):
vancouver.citynews.ca/2025/06/16/s...
Study: Climate change tripled planetary waves since 1950
Climate change has tripled the frequency of atmospheric wave events linked to extreme summer weather in the last 75 years.
vancouver.citynews.ca
June 16, 2025 at 8:23 PM
@benlockwood.substack.com I have prepared a rebuttal paper. Are you interested in collaborating?
May 31, 2025 at 3:25 PM
Reposted by Giorgio Vacchiano
We just published an especially relevant warning from Craig McLean, the acting chief scientist and head of NOAA Research during "Sharpiegate."

He defended scientific integrity—and was removed as chief scientist.

Scientists can't be silent now either, he says. www.motherjones.com/politics/202...
I paid the price for speaking out about “Sharpiegate.” Scientists can’t be silent now, either.
"In elections, you elect policy. You don't elect science."
www.motherjones.com
February 6, 2025 at 8:30 PM
Reposted by Giorgio Vacchiano
By definition, numerical weather models require international data. The atmosphere knows no geopolitical boundaries: any model that begins and ends at its country’s border is unable to generate reliable predictions until after a weather system crosses its boundaries. Which defeats the purpose!
NOAA Employees Told to Pause Work With ‘Foreign Nationals’
An internal email obtained by WIRED shows that NOAA workers received orders to pause “ALL INTERNATIONAL ENGAGEMENTS.”
www.wired.com
February 6, 2025 at 3:23 PM
Reposted by Giorgio Vacchiano
📢 NOW OUT📢

UNEP has launched the 2024 #AdaptationGap Report.

The report provides an assessment of global progress in adapting to the climate crisis and its worst impacts.

www.unep.org/resources/ad...
December 30, 2024 at 9:56 AM
Reposted by Giorgio Vacchiano
Would appreciate a RT from the scientists for this one! We have 665 scientists in the spring database and I want to get us to about 1000 before we set the teachers loose on the database for January matches.
Scientists!

We are trying to get 1000 of us into the volunteer database by Jan 1.

You'll be volunteering to speak with classrooms over video chat about your work, and answer their questions! You can volunteer for up to 5 sessions per semester.

Sign up here! www.skypeascientist.com/sign-up.html
December 30, 2024 at 5:10 PM
Reposted by Giorgio Vacchiano
According to the City of Paris, in the last 10 years 150,000 trees have been planted and 45 hectares of parks created in the city, to improve quality-of-life today, and also to help the city adapt to and manage summer heatwaves of 50℃ (122F) by 2050.

On top of everything else Paris has been doing.
December 30, 2024 at 7:41 PM
Reposted by Giorgio Vacchiano
Do #ForestEurope indicators work for #biodiversity?

We tested them against field-sampled multi-taxon data (a lot of them!) and ...

only some of them moderately relate to species richness!

Read the recent article led by #YoanPaillet

doi.org/10.1016/j.bi...

Time for a data-driven revision!
December 9, 2024 at 6:04 AM
Reposted by Giorgio Vacchiano
As you go out on your winter walks, have a careful look at tree buds. A bud is an amazing structure. For many temperate trees, all of next year's growth is already in the bud - leaves, buds, internodes, even flowers. That means that this year's weather already established next year's growth.
December 3, 2024 at 5:09 PM