Ian Hall
@ianhall.bsky.social
Climate scientist, palaeoclimatologist, marine geologist and ageing marathon runner. Prof. @ Cardiff University, views are my own, #FirstGen, He/Him 🏴🇪🇺
Clouds are vital to life – but many are becoming wispy ghosts. Here’s how to see the changes above us
theconversation.com/clouds-are-v...
theconversation.com/clouds-are-v...
Clouds are vital to life – but many are becoming wispy ghosts. Here’s how to see the changes above us
As reflective white clouds become scarcer, learning to read the clouds could become essential in helping glimpse the changes upon us.
theconversation.com
January 6, 2026 at 6:43 AM
Clouds are vital to life – but many are becoming wispy ghosts. Here’s how to see the changes above us
theconversation.com/clouds-are-v...
theconversation.com/clouds-are-v...
Refreezing the Arctic, brightening the clouds so they reflect the sun's rays – the crazy but serious geoengineering ideas that could save our planet
When ‘refreezing the Arctic’ moves from absurd to academic - it’s mostly crazy.
www.discoverwildlife.com/animal-facts...
When ‘refreezing the Arctic’ moves from absurd to academic - it’s mostly crazy.
www.discoverwildlife.com/animal-facts...
Refreezing the Arctic, brightening the clouds so they reflect the sun's rays – the crazy but serious geoengineering ideas that could save our planet | Discover Wildlife
www.discoverwildlife.com
January 6, 2026 at 6:40 AM
Refreezing the Arctic, brightening the clouds so they reflect the sun's rays – the crazy but serious geoengineering ideas that could save our planet
When ‘refreezing the Arctic’ moves from absurd to academic - it’s mostly crazy.
www.discoverwildlife.com/animal-facts...
When ‘refreezing the Arctic’ moves from absurd to academic - it’s mostly crazy.
www.discoverwildlife.com/animal-facts...
The Prudhoe Dome, currently a 500m-thick ice dome attached to the northwestern Greenland Ice Sheet, completely melted away ~ 7,000 years ago in response to Holocene warming.
www.nature.com/articles/s41...
www.nature.com/articles/s41...
Deglaciation of the Prudhoe Dome in northwestern Greenland in response to Holocene warming - Nature Geoscience
The ~500-metre-thick Prudhoe Dome in northwestern Greenland completely deglaciated 7,000 years ago, highlighting the sensitivity of the ice sheet to mid-Holocene warming, according to luminescence and...
www.nature.com
January 6, 2026 at 6:09 AM
The Prudhoe Dome, currently a 500m-thick ice dome attached to the northwestern Greenland Ice Sheet, completely melted away ~ 7,000 years ago in response to Holocene warming.
www.nature.com/articles/s41...
www.nature.com/articles/s41...
🌊 Will 2026 be the year when coral reefs pass their tipping point?
theconversation.com/will-2026-be...
theconversation.com/will-2026-be...
Will 2026 be the year when coral reefs pass their tipping point?
Many coral reefs are already very vulnerable, and another El Niño is forecast.
theconversation.com
January 6, 2026 at 5:40 AM
🌊 Will 2026 be the year when coral reefs pass their tipping point?
theconversation.com/will-2026-be...
theconversation.com/will-2026-be...
Any climate solution that begins “a secretive team of scientists is working on…” should probably end with “this won’t fix the real problem”.
Dimming the sun isn’t climate action — it’s avoidance, or buying time at best.
www.independent.co.uk/climate-chan...
Dimming the sun isn’t climate action — it’s avoidance, or buying time at best.
www.independent.co.uk/climate-chan...
Companies are coming up with plans to block out the sun
Private companies are jumping into the race to deploy particles to the atmosphere to reduce global warming, prompting enthusiasm from investors and concerns from some scientists, Josh Marcus reports
www.independent.co.uk
January 5, 2026 at 8:46 PM
Any climate solution that begins “a secretive team of scientists is working on…” should probably end with “this won’t fix the real problem”.
Dimming the sun isn’t climate action — it’s avoidance, or buying time at best.
www.independent.co.uk/climate-chan...
Dimming the sun isn’t climate action — it’s avoidance, or buying time at best.
www.independent.co.uk/climate-chan...
Facts alone don’t drive climate action…
How we talk about climate change matters; messages that connect to people’s values are far more effective at building concern and support for action.
Communication is a key part of climate strategy.
www.nature.com/articles/s41...
How we talk about climate change matters; messages that connect to people’s values are far more effective at building concern and support for action.
Communication is a key part of climate strategy.
www.nature.com/articles/s41...
Communicating the need for climate action - Nature Climate Change
It is essential to understand the best way to frame a persuasive message aimed at increasing concern about climate change and support for pro-environmental action. Now a Registered Report presents a l...
www.nature.com
January 5, 2026 at 7:15 PM
Facts alone don’t drive climate action…
How we talk about climate change matters; messages that connect to people’s values are far more effective at building concern and support for action.
Communication is a key part of climate strategy.
www.nature.com/articles/s41...
How we talk about climate change matters; messages that connect to people’s values are far more effective at building concern and support for action.
Communication is a key part of climate strategy.
www.nature.com/articles/s41...
Asking if climate change will “make us poorer” misses the point. The costs depend heavily on how — and how fast — we respond...
www.telegraph.co.uk/money/net-ze...
www.telegraph.co.uk/money/net-ze...
January 5, 2026 at 3:16 PM
Asking if climate change will “make us poorer” misses the point. The costs depend heavily on how — and how fast — we respond...
www.telegraph.co.uk/money/net-ze...
www.telegraph.co.uk/money/net-ze...
Wall Street banks are earning more from green projects than from fossil fuels for the 4th consecutive year.
Perhaps someone should tell Trump…
www.bloomberg.com/news/article...
Perhaps someone should tell Trump…
www.bloomberg.com/news/article...
Banks Notch Higher Fees From Green Bonds Than Fossil Fuel Debt
Wall Street’s biggest banks made more money financing green projects than they did from working with fossil fuel companies for a fourth straight year, even as they faced ongoing pressure to pull back ...
www.bloomberg.com
January 4, 2026 at 8:25 AM
Wall Street banks are earning more from green projects than from fossil fuels for the 4th consecutive year.
Perhaps someone should tell Trump…
www.bloomberg.com/news/article...
Perhaps someone should tell Trump…
www.bloomberg.com/news/article...
There is no such thing as a natural disaster…
‘These disasters are not 'natural'': Heatwaves, wildfires, droughts, and storms cost more than $120bn in 2025
www.businessgreen.com/news/4523711...
‘These disasters are not 'natural'': Heatwaves, wildfires, droughts, and storms cost more than $120bn in 2025
www.businessgreen.com/news/4523711...
'These disasters are not 'natural'': Heatwaves, wildfires, droughts, and storms cost more than $120bn in 2025
New report identifies the 10 most expensive and impactful climate disasters of the past year
www.businessgreen.com
January 4, 2026 at 8:03 AM
There is no such thing as a natural disaster…
‘These disasters are not 'natural'': Heatwaves, wildfires, droughts, and storms cost more than $120bn in 2025
www.businessgreen.com/news/4523711...
‘These disasters are not 'natural'': Heatwaves, wildfires, droughts, and storms cost more than $120bn in 2025
www.businessgreen.com/news/4523711...
Dry January is a great idea in theory. Then you read the news.
January 4, 2026 at 7:13 AM
Dry January is a great idea in theory. Then you read the news.
Sea-level rise: featuring scenic waterways and zero visible destruction.
AI based Venice cosplay, not climate reality…
www.standard.co.uk/news/london/...
AI based Venice cosplay, not climate reality…
www.standard.co.uk/news/london/...
What a 6-metre sea-level rise would do to London's most iconic landmarks
These haunting images visualise London where climate change has raised the Thames by six metres, transforming the city’s historic heart into a serene, yet catastrophic, new Venice
www.standard.co.uk
January 4, 2026 at 6:58 AM
Sea-level rise: featuring scenic waterways and zero visible destruction.
AI based Venice cosplay, not climate reality…
www.standard.co.uk/news/london/...
AI based Venice cosplay, not climate reality…
www.standard.co.uk/news/london/...
🌊 Africa’s surrounding oceans are rising faster than ever.
Satellite data show sea level rise has accelerated to 4.34 mm/yr since 2010 - 4× faster than the 1990s.
Over 80% is driven by melting ice sheets, putting 50+ million coastal residents at risk.
www.nature.com/articles/s43...
Satellite data show sea level rise has accelerated to 4.34 mm/yr since 2010 - 4× faster than the 1990s.
Over 80% is driven by melting ice sheets, putting 50+ million coastal residents at risk.
www.nature.com/articles/s43...
Accelerating sea level rise in Africa and its large marine ecosystems since the 1990s - Communications Earth & Environment
Sea-level rise in African large marine ecosystem has accelerated markedly since 2010, mostly due to ice sheet loss and land subsidence, with the Red Sea and Guinea Current rising fastest, according to...
www.nature.com
January 4, 2026 at 6:51 AM
🌊 Africa’s surrounding oceans are rising faster than ever.
Satellite data show sea level rise has accelerated to 4.34 mm/yr since 2010 - 4× faster than the 1990s.
Over 80% is driven by melting ice sheets, putting 50+ million coastal residents at risk.
www.nature.com/articles/s43...
Satellite data show sea level rise has accelerated to 4.34 mm/yr since 2010 - 4× faster than the 1990s.
Over 80% is driven by melting ice sheets, putting 50+ million coastal residents at risk.
www.nature.com/articles/s43...
Doubling down on oil dependency is a planetary dead end. It’s also a choice. A livable future means ending our addiction and choosing clean energy instead.
January 3, 2026 at 6:51 PM
Doubling down on oil dependency is a planetary dead end. It’s also a choice. A livable future means ending our addiction and choosing clean energy instead.
India, Saudi Arabia and Argentina are among the ~70 nations that did not submit updated climate plans to the UN’s in 2025, despite the 2015 Paris Agreement’s requirement that countries do so every five years.
www.climatechangenews.com/2026/01/02/i...
www.climatechangenews.com/2026/01/02/i...
India, Saudi Arabia and Argentina fail to submit climate plans in 2025
The Paris Agreement requires governments to submit climate plans every five years - and most nations published there's this year
www.climatechangenews.com
January 3, 2026 at 3:56 PM
India, Saudi Arabia and Argentina are among the ~70 nations that did not submit updated climate plans to the UN’s in 2025, despite the 2015 Paris Agreement’s requirement that countries do so every five years.
www.climatechangenews.com/2026/01/02/i...
www.climatechangenews.com/2026/01/02/i...
The environmental and climate cost of war
“Armed conflicts cause profound and often overlooked environmental damage that persists long after the fighting stops”
physicsworld.com/a/the-enviro...
“Armed conflicts cause profound and often overlooked environmental damage that persists long after the fighting stops”
physicsworld.com/a/the-enviro...
The environmental and climate cost of war – Physics World
Researchers and policymakers need a fuller view of the environmental and climate cost of war, to rebuild after the dust settles, as Benjamin Skuse finds
physicsworld.com
January 3, 2026 at 6:54 AM
The environmental and climate cost of war
“Armed conflicts cause profound and often overlooked environmental damage that persists long after the fighting stops”
physicsworld.com/a/the-enviro...
“Armed conflicts cause profound and often overlooked environmental damage that persists long after the fighting stops”
physicsworld.com/a/the-enviro...
New paleo-data reveals Antarctic ice sheets respond differently to orbital climate forcing.
During the mid-Pliocene, the WAIS was highly dynamic, driven by obliquity and precession, while the EAIS was less ocean-sensitive, emphasising atmos warming's role in SLR.
www.nature.com/articles/s41...
During the mid-Pliocene, the WAIS was highly dynamic, driven by obliquity and precession, while the EAIS was less ocean-sensitive, emphasising atmos warming's role in SLR.
www.nature.com/articles/s41...
Spatially variable response of Antarctica’s ice sheets to orbital forcing during the Pliocene - Nature Geoscience
The West Antarctic Ice Sheet responded to different natural forcing mechanisms than the East Antarctic Ice Sheet through the mid-Pliocene due to a greater sensitivity to oceanic feedbacks, according t...
www.nature.com
January 2, 2026 at 6:17 PM
New paleo-data reveals Antarctic ice sheets respond differently to orbital climate forcing.
During the mid-Pliocene, the WAIS was highly dynamic, driven by obliquity and precession, while the EAIS was less ocean-sensitive, emphasising atmos warming's role in SLR.
www.nature.com/articles/s41...
During the mid-Pliocene, the WAIS was highly dynamic, driven by obliquity and precession, while the EAIS was less ocean-sensitive, emphasising atmos warming's role in SLR.
www.nature.com/articles/s41...
It’s official: 2025 = UK’s hottest & sunniest year
Avg temp: 10.09 °C (2nd time >10 °C since 1884)
Sunshine: 1,648.5 hrs (+60 hrs on 2003 record)
Winter blooms, heat & droughts rising
Climate change is here; 2026 must be a year for action
PS, crap lead picture
www.metoffice.gov.uk/about-us/new...
Avg temp: 10.09 °C (2nd time >10 °C since 1884)
Sunshine: 1,648.5 hrs (+60 hrs on 2003 record)
Winter blooms, heat & droughts rising
Climate change is here; 2026 must be a year for action
PS, crap lead picture
www.metoffice.gov.uk/about-us/new...
2025 is double-record breaker: UK’s warmest and sunniest year on record
2025 has broken historical climate records, with provisional Met Office figures showing it has been both the warmest and sunniest year on record for the UK.
www.metoffice.gov.uk
January 2, 2026 at 3:03 PM
It’s official: 2025 = UK’s hottest & sunniest year
Avg temp: 10.09 °C (2nd time >10 °C since 1884)
Sunshine: 1,648.5 hrs (+60 hrs on 2003 record)
Winter blooms, heat & droughts rising
Climate change is here; 2026 must be a year for action
PS, crap lead picture
www.metoffice.gov.uk/about-us/new...
Avg temp: 10.09 °C (2nd time >10 °C since 1884)
Sunshine: 1,648.5 hrs (+60 hrs on 2003 record)
Winter blooms, heat & droughts rising
Climate change is here; 2026 must be a year for action
PS, crap lead picture
www.metoffice.gov.uk/about-us/new...
Climate change isn’t just charts and projections.
It’s hundreds of UK plants flowering early in winter, right now, right outside.
Once you notice it, you can’t unsee it.
A visible signal of climate breakdown.
www.theguardian.com/environment/...
It’s hundreds of UK plants flowering early in winter, right now, right outside.
Once you notice it, you can’t unsee it.
A visible signal of climate breakdown.
www.theguardian.com/environment/...
Winter blooming of hundreds of plants in UK ‘visible signal’ of climate breakdown
New year plant hunt shows rising temperatures are shifting natural cycles of wildflowers such as daisies
www.theguardian.com
January 2, 2026 at 6:39 AM
Climate change isn’t just charts and projections.
It’s hundreds of UK plants flowering early in winter, right now, right outside.
Once you notice it, you can’t unsee it.
A visible signal of climate breakdown.
www.theguardian.com/environment/...
It’s hundreds of UK plants flowering early in winter, right now, right outside.
Once you notice it, you can’t unsee it.
A visible signal of climate breakdown.
www.theguardian.com/environment/...
Forcing lifestyle change can erode climate support.
Funny how New Year’s resolutions remind us: lasting change usually starts with personal choice.
www.independent.co.uk/climate-chan...
Funny how New Year’s resolutions remind us: lasting change usually starts with personal choice.
www.independent.co.uk/climate-chan...
Forcing lifestyle changes could weaken support for climate action, study finds
Mandates targeting lifestyle choices, such as urban car bans, can provoke strong resistance, even among people who already try to live sustainably, new study warns
www.independent.co.uk
January 1, 2026 at 7:58 AM
Forcing lifestyle change can erode climate support.
Funny how New Year’s resolutions remind us: lasting change usually starts with personal choice.
www.independent.co.uk/climate-chan...
Funny how New Year’s resolutions remind us: lasting change usually starts with personal choice.
www.independent.co.uk/climate-chan...
Cheers to 2026 — may it bring less climate fantasy and a lot more climate reality. 🥂🌍
Start the year informed…
www.theguardian.com/us-news/2025...
Start the year informed…
www.theguardian.com/us-news/2025...
From ‘global cooling’ to ‘beautiful coal’: Trump’s startling climate claims of 2025
Trump ratcheted up his often questionable claims about the environment and how to deal, if at all, with the threats to it
www.theguardian.com
December 31, 2025 at 6:16 PM
Cheers to 2026 — may it bring less climate fantasy and a lot more climate reality. 🥂🌍
Start the year informed…
www.theguardian.com/us-news/2025...
Start the year informed…
www.theguardian.com/us-news/2025...
The three-year global temperature average has exceeded 1.5°C above pre-industrial levels for the first time on record.
This isn’t a projection; it’s happening now.
www.independent.co.uk/climate-chan...
This isn’t a projection; it’s happening now.
www.independent.co.uk/climate-chan...
Warning as scientists find this year was one of the three hottest on record
Climate change made 2025 one of the hottest years ever recorded
www.independent.co.uk
December 30, 2025 at 9:00 PM
The three-year global temperature average has exceeded 1.5°C above pre-industrial levels for the first time on record.
This isn’t a projection; it’s happening now.
www.independent.co.uk/climate-chan...
This isn’t a projection; it’s happening now.
www.independent.co.uk/climate-chan...
Reposted by Ian Hall
🧪📍🌊 🦑🍎 Attention students and recent grads! opportunity for #oceanscience interns to sail aboard #EVNautilus next year in a paid position for 3-5 weeks. Whether you’re studying #marinebiology, #geology, or any other type of #oceanography. Learn more and apply by Jan 4 at NautilusLive.org
Nautilus Live | Ocean Exploration Trust
Explore the ocean with us! We seek out new discoveries while conducting scientific exploration of the seafloor and stream live to the world aboard Exploration Vessel Nautilus.
NautilusLive.org
December 11, 2025 at 11:07 PM
🧪📍🌊 🦑🍎 Attention students and recent grads! opportunity for #oceanscience interns to sail aboard #EVNautilus next year in a paid position for 3-5 weeks. Whether you’re studying #marinebiology, #geology, or any other type of #oceanography. Learn more and apply by Jan 4 at NautilusLive.org
Mini nuclear reactors are already losing their glow
Solar and wind are cheaper, faster to build, and already scaling globally, while SMRs face high costs, long timelines, and regulatory hurdles. Nuclear’s reliability is a strength, but on pure economics renewables wins.
www.ft.com/content/567a...
Solar and wind are cheaper, faster to build, and already scaling globally, while SMRs face high costs, long timelines, and regulatory hurdles. Nuclear’s reliability is a strength, but on pure economics renewables wins.
www.ft.com/content/567a...
Mini nuclear reactors are already losing their glow
Several studies suggest SMRs will produce higher levels of nuclear waste than traditional plants
www.ft.com
December 30, 2025 at 7:25 AM
Mini nuclear reactors are already losing their glow
Solar and wind are cheaper, faster to build, and already scaling globally, while SMRs face high costs, long timelines, and regulatory hurdles. Nuclear’s reliability is a strength, but on pure economics renewables wins.
www.ft.com/content/567a...
Solar and wind are cheaper, faster to build, and already scaling globally, while SMRs face high costs, long timelines, and regulatory hurdles. Nuclear’s reliability is a strength, but on pure economics renewables wins.
www.ft.com/content/567a...