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John_Green guru

@john-greenbuild

Senior Lecturer in Climate Change Resilience & Sustainability at Sheffield Hallam University. Born: CO2: 323ppm popn. 3.5 billion

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15.11.2024
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Latest posts by John_Green guru @john-greenbuild

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Post 352 (Incl. posts on X):
Cryospheres switched-gain/loss

Antarctic, GAINED (only) 8,000km, up to 14th at 2,705,000 km and only 362,000 km below average.

Arctic LOST (only) 114,000km, and dropped to second: 14,101,000km and 1.4 million km below average.

But Arctic sea ice volume STILL very bad.

04.03.2026 15:40 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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Post 351 (Incl. posts on X):
Both Cryospheres slightly worse πŸ˜₯.

Antarctic, lost 181,000km, down to 18th at 2,697,000 km and only 110,000 km below average.

Arctic up only 9,000km, but kept at 4th on record: 14,215,000km and 1.2 million km below average.

But Arctic sea ice volume STILL very bad.

24.02.2026 08:43 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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Scientists issue warning as global crisis approaches 'point of no return': 'Unprecedented' A new study revealed that the Earth is warming faster than scientists previously believed, underscoring the necessity of immediate climate action.

www.thecooldown.com/outdoors/ear...

23.02.2026 14:25 πŸ‘ 26 πŸ” 14 πŸ’¬ 2 πŸ“Œ 0

BREAKING: Richard Tice is to announce Reform UK's plans to introduce a "Great Repeal Bill" that will scrap Labour's Employment Rights' Act and rent reforms

JUST DON’T VOTE REFORM

24.02.2026 07:16 πŸ‘ 1863 πŸ” 821 πŸ’¬ 103 πŸ“Œ 55

If you care about the social responsibility of scientists, don’t miss this mid-March talk at the @royalsociety.org

Jeff Waage, @abiperrin.bsky.social & @charliejgardner.bsky.social are courageous colleagues who lead by example.

You’ll want to hear what they have to say!

23.02.2026 09:07 πŸ‘ 30 πŸ” 21 πŸ’¬ 1 πŸ“Œ 1
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Global warming must peak below 2Β°C to limit tipping point risks Global warming must peak below 2Β°C then return under 1.5Β°C as quickly as possible to limit the risk of dangerous β€œtipping points”, experts say. Β  The new paper, by an international team of researchers...

"...the higher the peak temperature, the more difficult it is to reverse temperature below critical levels and the longer it’s likely that we’ll remain in β€˜overshoot’.” - @njsteinert.bsky.social, @cicero.oslo.no

#ClimateEmergency

24.02.2026 04:08 πŸ‘ 54 πŸ” 29 πŸ’¬ 1 πŸ“Œ 3
Goodwin CAUGHT Contradicting Himself!
Goodwin CAUGHT Contradicting Himself! YouTube video by Maximilien Robespierre

youtu.be/Er3oEYYL38U?... Does Goodwin understand how a housing list works or even what it is?

22.02.2026 09:41 πŸ‘ 2 πŸ” 1 πŸ’¬ 0 πŸ“Œ 0
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Mapping tipping risks from Antarctic ice basins under global warming - Nature Climate Change Climate change threatens the future of the Antarctic Ice Sheet. Here the authors show that individual drainage basins have different thresholds and loss patterns, suggesting the need to consider the d...

⚠️"A first threshold, potentially as low as 1–2 °C above pre-industrial levels, triggers the long-term collapse of ~40% of marine ice volume in West Antarctica"

I.e. The Paris Agreement target locks in approximately 2.1 metres sea-level equivalent from WAIS alone.

🌊

22.02.2026 09:41 πŸ‘ 97 πŸ” 60 πŸ’¬ 4 πŸ“Œ 4
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Reform no longer the favourites to win next election Reform UK is no longer the bookmakers’ favourites to win the most seats at the next general election, it has been revealed.

The more people find out about Reforms actual behaviour as MPs and in local government the more their support slips.

www.thelondoneconomic.com/politics/ref...

17.02.2026 14:44 πŸ‘ 52 πŸ” 20 πŸ’¬ 3 πŸ“Œ 0
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Post 350 (Incl. posts on X):
Both Cryospheres improved (3rd week running).

Antarctic, lost 321,000km, up to 27th at 2,878,000 km and only 13,000 km below average!

Arctic up 202,000km, kept at 4th on record: 14,206,000km and 1.1 million km below average.

But Arctic sea ice volume STILL very bad.

17.02.2026 13:12 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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Post 349 (Incl. posts on X):
Both Cryospheres improved (2nd week running).

Antarctic, lost 353,000km, down to 24th at 3,199,000 km and only 47,000 km below average!

Arctic +370,000km, up to 4th on record, at 14,004,000km and 1.2 million km below average.

But Arctic sea ice volume STILL very bad.

10.02.2026 08:14 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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Post 348 (Incl. posts on X):
Both Cryospheres improved.

Antarctic much improved, only lost 294,000km, up to 26th at 3,552,000 km approx only 73,000 km below average!

Arctic +354,000km, up to 3rd on record, at 13,634,000km and 1.3 million km below average.

But Arctic sea ice volume STILL very bad.

03.02.2026 08:52 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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Post 347 (Incl. posts on X):
Cryospheres tale of two halves.

Antarctic lost 502,000km, up to 19th at 4,348,000km and approx only 0.2 million km below average.

Arctic +181,000km, down to worst on record, at 13,280,000km and 1.4 million km below average.

Arctic sea ice volume STILL very bad.

27.01.2026 08:42 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

1. This short thread is about the issue that dominates almost every aspect of politics, and causes or exacerbates most of our problems: the extreme wealth of a small number of people. Here’s the amazing thing: almost the entire political class aligns with the ultra-rich against the rest. 🧡1/10

23.01.2026 11:30 πŸ‘ 2034 πŸ” 982 πŸ’¬ 62 πŸ“Œ 149
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Post 346 (Incl. posts on X):
Cryospheres tale of two halves.

Antarctic only lost 394,000km, Up to 14th at 4,348,000km and approx 0.3 million km below average.

Arctic LOST 30,000km, down to 2nd on record. At 13,099,000km and 1.4 million km below average.
Also, Arctic sea ice volume STILL very bad.

20.01.2026 09:55 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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Dear Black people,
they’re coming for us too.

15.01.2026 01:08 πŸ‘ 11539 πŸ” 5199 πŸ’¬ 926 πŸ“Œ 328
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Post 345 (Incl. posts on X):
Both Cryospheres improving (yay!).

Antarctic lost 1,201,000km, Up to 11th at 4,742,000km and approx 0.5 million km below average.

Arctic gained 677,000km, up to 4th on record. At 13,129,000km and 1.2 million km below average.
BUT - Arctic sea ice volume STILL very bad.

15.01.2026 09:50 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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Post 344 (2026) Incl. posts on X:
Cryospheres worsening slightly.
Arctic gained 223,000km, down to 2nd on record. At 12,452,000km and 1.4 million km below average.
Antarctic lost 998,000 km, down to joint 6th at 5,943,000km and approx 0.7 million km below average.
Arctic sea ice volume very bad.

06.01.2026 08:41 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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We cannot become numb to the outrage of this. The wife of the President’s Senior Advisor threatens a sovereign nation.

04.01.2026 23:45 πŸ‘ 20279 πŸ” 5718 πŸ’¬ 1166 πŸ“Œ 396
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β€˜Women have to fight for what they want’: UK campaigner’s 60-year unfinished battle for abortion rights Diane Munday helped secure legal terminations in 1967 and, aged 94, is still calling for wider reproductive rights

β€˜Women have to fight for what they want’: UK campaigner’s 60-year unfinished battle for abortion rights

05.01.2026 09:44 πŸ‘ 148 πŸ” 31 πŸ’¬ 0 πŸ“Œ 2

Every imperial power drums up paranoid fears to justify aggression and expansion. If one excuse looks too ridiculous to attempt, another will always be found.

04.01.2026 10:34 πŸ‘ 790 πŸ” 152 πŸ’¬ 17 πŸ“Œ 6
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Venezuela attack could embolden China and Russia, says Emily Thornberry Failure to condemn US intervention risks encouraging others to take similar action, warns senior Labour MP The lack of western condemnation of the US military intervention in Venezuela could embolden China and Russia to take similar action against other countries, a senior Labour MP has warned. Emily Thornberry, who chairs the Commons foreign affairs committee, said that without a coherent and strong response to Donald Trump’s move at the weekend to remove the Venezuelan president, NicolΓ‘s Maduro, and bring him to the US, the norms of international law could break down. Continue reading...

Venezuela attack could embolden China and Russia, says Emily Thornberry

05.01.2026 09:48 πŸ‘ 131 πŸ” 34 πŸ’¬ 25 πŸ“Œ 17
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πŸ’―

05.01.2026 05:11 πŸ‘ 16020 πŸ” 6679 πŸ’¬ 763 πŸ“Œ 411
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Why Venezuela? Why Now? Trump might have more in common with Maduro than he thought.

Why Venezuela?

Oil.

Why now?

The affordability crisis, the end of the fracking revolution, and the threat of Chinese energy independence.

graceblakeley.substack.com/p/why-venezu...

05.01.2026 09:51 πŸ‘ 128 πŸ” 48 πŸ’¬ 15 πŸ“Œ 4

To add to the madness of it all, the attack on Venezuela is clearly, above all, an oil grab. But we scarcely need oil any more.

04.01.2026 11:33 πŸ‘ 1561 πŸ” 263 πŸ’¬ 163 πŸ“Œ 19
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The rate of global sea level rise doubled during the past three decades - Communications Earth & Environment Global mean sea level rise amounted to 4.5 mm per year as a result of warming oceans and melting land ice, more than twice the rate of 2.1 mm/year observed at the start of satellite data in 1993, base...

The rate of global mean sea level rise has increased from ~2.1 mm/year in 1993 to ~4.5 mm/year in 2023. www.nature.com/articles/s43...

03.01.2026 21:18 πŸ‘ 4609 πŸ” 1846 πŸ’¬ 243 πŸ“Œ 144
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A picture is worth 1000 words...

This appeared on the BBC News today, showing the increase in solar electric generation in the UK.

Not sure who produced it, but genuinely think this is a genius piece of scientific communication - the construct and choice of colour scale is near-perfect.

Chapeau!

02.01.2026 16:53 πŸ‘ 584 πŸ” 203 πŸ’¬ 14 πŸ“Œ 18
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2025 was UK’s warmest and sunniest year on record, says Met Office Mean temperature for year was 10.09C, surpassing 2022 record, and 1,648.5 hours of sunshine were recorded 2025 was the UK’s warmest and sunniest year on record, the Met Office has confirmed. The UK’s three hottest years on record have now all been in this decade, which meteorologists say is proof of a rapidly changing climate. All of the top 10 warmest years have happened in the past two decades. Continue reading...

2025 was UK’s warmest and sunniest year on record, says Met Office

02.01.2026 14:01 πŸ‘ 36 πŸ” 12 πŸ’¬ 0 πŸ“Œ 1
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Post 343 (incl. posts on X):
Cryospheres slightly better.
Arctic gained 663,000km, up to 3rd on record (yay!)! At 12,229,000km and 1.3 million km below average.
Antarctic lost 1,296,000 km, down to 7th at 6,941,000km and approx 0.8 million km below average.
No new data on Arctic sea ice volume.

31.12.2025 06:33 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

Love it! 😻
BTW Merry Yule πŸŽ„

25.12.2025 11:17 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0