John
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maenhir.bsky.social
John
@maenhir.bsky.social
Artist
Avebury Outer Circle NW 40
#StandingStoneSunday
November 23, 2025 at 1:19 PM
November 16, 2025 at 11:33 AM
November 9, 2025 at 9:44 AM
Pentre Ifan
#TombTuesday
November 4, 2025 at 11:20 AM
Reposted by John
Our 2025 State of the Climate Report was just published in BioScience by scientists from around the world including @michaelemann.bsky.social @petergleick.bsky.social This video (2 minutes) shows the key highlights: doi.org/10.1093/bios...
November 2, 2025 at 5:13 PM
Coynant Maenhir
#StandingStoneSunday
November 2, 2025 at 11:18 AM
Minchinhampton
#StandingStoneSunday
October 26, 2025 at 9:31 AM
October 18, 2025 at 9:07 AM
Reposted by John
High resolution images from satellite and from eddy-resolving ocean circulation models point to an ongoing decline of the Atlantic overturning circulation, a key ocean current for our climate. Read more about it in my new blog article. 🌊
www.realclimate.org/index.php/ar...
RealClimate: High-resolution ‘fingerprint’ images reveal a weakening Atlantic Ocean circulation (AMOC)
The #AMOC is the reason for Europe’s mild climate. Evidence that it is slowing has been piling up over the years – it now is likely at its weakest in at least a millennium, and it may even be approach...
www.realclimate.org
October 12, 2025 at 11:15 AM
October 12, 2025 at 9:43 AM
Reposted by John
Multi-generational vulture nests hold 700 years of human artifacts.
www.popsci.com/environment/...
Multi-generational vulture nests hold 700 years of human artifacts
Crossbow bolts, sandals, slingshots, and more.
www.popsci.com
October 4, 2025 at 3:25 PM
Reposted by John
This is absolutely staggering.
Record warm ocean temperatures continued in September across the North Pacific Ocean, with a number of consequential impacts (including on downstream weather patterns).

This graph shows the average for a band across the midlatitudes for every September from 1854-2025 using @noaa.gov ERSSTv5 data.
October 5, 2025 at 11:04 AM
October 5, 2025 at 11:04 AM
Reposted by John
WWW creator Tim Berners-Lee says his vision was based on sharing, not exploitation. Here’s why he thinks it's still worth fighting for

www.theguardian.com/technology/2...
Why I gave the world wide web away for free | Tim Berners-Lee
My vision was based on sharing, not exploitation – and here’s why it’s still worth fighting for
www.theguardian.com
September 28, 2025 at 6:23 PM
Reposted by John
The oceans just hit an ominous milestone
A new report sounds the alarm on ocean acidification as Earth breaches the seventh of nine "planetary boundaries."

grist.org/oceans/the-o...

#Climate #Oceans #Heat #Seas #Fish #MarineLife #Environment #Water
The oceans just hit an ominous milestone
A new report sounds the alarm on mounting ocean acidification as Earth breaches the seventh of nine "planetary boundaries."
grist.org
September 26, 2025 at 5:05 PM
Staunton longstone
#StandingStoneSunday
September 28, 2025 at 1:18 PM
September 21, 2025 at 11:09 AM
Reposted by John
Electrification is vastly more efficient than combustion technologies:

🚘 An electric car uses about 75% less final energy than an ICE car.

🔥 A heat pump delivers about 4x more heat for the same energy input.

Note: Of course the exact efficiency and saving will differ between models and context.
September 20, 2025 at 8:40 AM
Meinillwydion
#StandingStoneSunday.
September 14, 2025 at 11:12 AM
Tresvennack pillar
#StandingStoneSunday
September 7, 2025 at 12:01 PM
August 31, 2025 at 1:01 PM
Reposted by John
August 27, 2025 at 4:41 PM
August 24, 2025 at 9:34 AM
Porthmeor Longstone
#StandingStoneSunday
August 17, 2025 at 8:10 AM
Reposted by John
As I said...
August 12, 2025 at 7:34 PM