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#michaelmann

6 posts6 participants0 posts today
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Ivi Choc

#FYI #MichaelMann #PBSNewsHour

"EPA said it is reconsidering the scientific finding that greenhouse gases are a danger to public health. This comes as research shows average global temperatures in 2024 likely rose above a 1.5 degree Celsius threshold that for years has been a red line for climate change."

youtube.com/watch?v=iGkLcqLWxMA

YouTubeEarth is ‘perilously close’ to a global warming threshold. Here’s what to knowBy PBS NewsHour
#climate#ClimateScience#climatechange
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Andrew Kuchling

Recent reading:

OUR FRAGILE MOMENT: HOW LESSONS FROM EARTH'S PAST CAN HELP US SURVIVE THE CLIMATE CRISIS, by @MichaelEMann, surveys paleoclimate: what's known about Earth's climate in geological history, what that tells us about climate's variability over time, and what lessons we might draw from it.

This book isn't as entrancing as Marcia Bjornerud's TIMEFULNESS -- Mann uses a zillion acronyms, and near the end of the book, the section on the Pleistocene gets a little plodding -- but both books tackle the grand sweep of Earth's climate history, which has had some remarkable twists & turns.

For example, the first appearance of plants produced a lot of oxygen, which destroyed atmospheric methane and greatly reduced the greenhouse effect, so the planet glaciated completely (or almost?). Volcanoes drove up carbon dioxide, ending this icy episode. Temperature spiked at the Permian/Triassic boundary, and the asteroid that ended the Cretaceous drove cooling for a few decades, but the species die-off took millions of years to restore a carbon cycle.

The Paleocene-Eocene Thermal Maximum (PETM) may be the closest analogue to modern warming, with a 9 degF increase over 10 000 years. Some climate doomers are worried about seabed methane vaporizing and driving a sudden increase in greenhouse-effect warming, but Mann points out that didn't seem to happen during the PETM, which had much more warming than we've seen so far and will see for a century or two.

But Mann also notes that "the picture is bad enough", discussing possible effects on the Atlantic Meridional Overturning Circulation and the El Niño–Southern Oscillation, and they could be widely disruptive to Europe and to the Asian monsoons.

Overall it's a grounded & sobering book, but it's not utterly depressing, and it's a good discussion from a directly-involved scientist.

Cover of the book OUR FRAGILE MOMENT: HOW LESSONS FROM EARTH'S PAST CAN HELP US SURVIVE THE CLIMATE CRISIS, by Michael Mann.
#books#bookstodon#science
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Mediathekperlen

Michael Mann – „Tokyo Vice“ (2022)

Diese Serie bezahlen Sie mit ihrem Leben. Allein die erste Staffel wird Sie acht Stunden davon kosten. Und glauben Sie nicht, dass Sie danach einfach aufhören können. Tokyo Vice ist ein Rauschmittel, verschrieben von Michael Mann, dem großen Visualisten unter den großen Erzählern des Kinos. Jetzt endlich auch mit der zweiten Staffel in der Mediathek. (ARD)

Bild: HBO Max/Fifth Season, LLC"
NexxtPress · Mediathekperlen | Michael Mann – „Tokyo Vice“
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