iiinova — where your digital self keeps evolving

Prof Ian Hall @ianhall.bsky.social · 16h

The evidence was compelling then. It’s even stronger now. Yet on 12 February 2026, the US EPA finalised the rescission of the 2009 Endangerment Finding, following an executive order mandating its re-examination. New review... agupubs.onlinelibrary.wiley.com/doi/10.1029/...

agupubs.onlinelibrary.wiley.com

Fingerprint Evidence for Human Effects on Climate: Advances After the 2009 Endangerment Finding

Since the EPA's 2009 finding that greenhouse gas emissions harm human health, evidence of human fingerprints on climate strengthened Progress was enabled by research showing the ubiquity of human...

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Prof Ian Hall @ianhall.bsky.social · 20h

Can AI help us fight climate change while consuming ever more electricity? That’s the contradiction we need to confront. Better technology is only part of the answer. We also need cleaner energy, smarter choices and rules that put people and the planet first. theconversation.com/will-ai-be-g...

theconversation.com

Will AI be good or bad for the climate? Here’s what the latest evidence on energy use suggests

AI data centres are using vast amounts of energy, but that is expected to grow fast.

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Prof Ian Hall @ianhall.bsky.social · 11/10/2026

Europe’s biggest funder of fossil fuels urges investors to see an opportunity in ‘super’ El Niño "For investors, a very strong El Niño should be viewed as a source of market dispersion rather than a uniformly negative shock" www.thebureauinvestigates.com/stories/2026...

thebureauinvestigates.com

Barclays spots a chance to profit from extreme weather crisis

Europe’s biggest funder of fossil fuels urges investors to see an opportunity in ‘super’ El Niño that could leave millions starving

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Prof Ian Hall @ianhall.bsky.social · 11/10/2026

One month doesn’t make a trend. But the trend is unmistakable. www.ncei.noaa.gov/access/monit...

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Prof Ian Hall @ianhall.bsky.social · 11/10/2026

We’re cutting mercury emissions, but climate change could bring yesterday’s pollution back into the food chain. Thawing permafrost, wildfires, and warming waters may change how mercury moves and becomes toxic methylmercury. www.science.org/doi/10.1126/...

science.org

Climate change reshapes the global mercury cycle

How will climate change shape future human risks to mercury exposure?

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Reposted by Prof Ian Hall

Rob Larter @polarrobs.bsky.social · 11/10/2026

🧵🌊❄️ For the past week Antarctic sea-ice extent has closely tracked its decline through the same week in the previous record low year of 2023. The persistent low extent then was so far below anything recorded before that even experts were surprised and struggled to explain the sudden change.

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Prof Ian Hall @ianhall.bsky.social · 10/10/2026

2024 saw more extreme rainfall events worldwide than any year on record. Global warming set the stage, while El Niño and unusually warm tropical oceans helped intensify extremes early in the year. With El Niño strengthening, the lesson from 2024 matters: prepare. www.science.org/doi/10.1126/...

science.org

Record-setting heavy precipitation occurrence in 2024

Precipitation extremes have increased globally in recent decades, consistent with a warming climate. We find that 2024 experienced a record-high frequency of heavy (≥99th percentile; FP≥99) precipitat...

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Prof Ian Hall @ianhall.bsky.social · 09/10/2026

‘Like an earthquake’: El Niño is coming for California – is the state ready? The real danger of El Niño isn’t just one extreme event. It’s how hazards connect and cascade, compounding risks and impacts. www.theguardian.com/us-news/2026...

theguardian.com

‘Like an earthquake’: El Niño is coming for California – is the state ready?

A mix of natural disasters could all befall the state at once as it finds itself in the crosshairs of the climate phenomenon

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Prof Ian Hall @ianhall.bsky.social · 09/10/2026

🌊 Ocean acidification pushes Mediterranean marine calcifiers toward a tipping point A reminder that biodiversity loss isn’t just about how many species we lose, but it's also about what ecosystems can still do. www.nature.com/articles/s41...

nature.com

Ocean acidification pushes Mediterranean marine calcifiers toward a tipping point - Scientific Reports

Scientific Reports - Ocean acidification pushes Mediterranean marine calcifiers toward a tipping point

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Prof Ian Hall @ianhall.bsky.social · 09/10/2026

Imprecise, but I don’t think this is the glaring error you suggest. There’s a difference between emissions rising, their growth rate slowing, and emissions accelerating. More accurately, emissions are still rising, but their long-term growth rate has slowed.

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Prof Ian Hall @ianhall.bsky.social · 08/10/2026

🌊 Nature-based ≠ automatically carbon-negative Oyster reefs can grow faster as sea levels rise, helping protect coasts from waves, but they may not store net carbon. Shell formation can offset the CO2 buried in reef sediments. www.nature.com/articles/s41...

nature.com

Sea level-induced oyster reef accretion causes minimal net carbon burial change - Nature Geoscience

Oyster reefs in North Carolina have grown vertically as sea level has risen in recent centuries, although this has not led to an increase in carbon sequestration, according to an analysis of oyster re...

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Prof Ian Hall @ianhall.bsky.social · 08/10/2026

Climate change isn’t taking us to one new, stable place. It’s pushing us into a future of constant change and growing uncertainty. So the question isn’t: What will the new normal be? It’s: How do we prepare for a climate that won’t stand still? Worth reading: theconversation.com/hoping-for-a...

theconversation.com

Hoping for a ‘new normal’ climate is pointless. We must learn to adapt

It’s increasingly common to hear climate-fuelled disasters described as the ‘new normal’. But our desire for normality and predictability is wishful thinking

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Prof Ian Hall @ianhall.bsky.social · 08/10/2026

Australia’s bush fires got worse after British colonization — this is why The suppression of Indigenous burning practices probably spurred the growth of flammable forests. www.nature.com/articles/d41...

nature.com

Australia’s bush fires got worse after British colonization — this is why

The suppression of Indigenous burning practices probably spurred the growth of flammable forests.

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Prof Ian Hall @ianhall.bsky.social · 08/10/2026

Yes, and that’s actually one of the points the article makes. People don’t make choices in a vacuum: income, infrastructure and the options available to us shape behaviour far more than climate concern alone.

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Prof Ian Hall @ianhall.bsky.social · 08/10/2026

A record-breaking UK summer may be shifting climate attitudes. 62% now say extreme heat is the most pressing climate impact, up from 36% in October 2024. Concern about wildfires has soared from 13% to 47%. But still little change in behaviour… theconversation.com/did-the-hot-...

theconversation.com

Did the hot summer make more people worry about climate change? Here’s what the latest indications show

Around 65% of the British public are now concerned about climate change.

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Prof Ian Hall @ianhall.bsky.social · 08/10/2026

A potentially wild El Niño ahead. Niño 3.4 is forecast around +3.7°C for Oct–Nov–Dec, peaking in December. For context: the previous record was +2.6°C in 2015–16. Time to focus-up… wmo.int/news/media-c...

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Prof Ian Hall @ianhall.bsky.social · 07/10/2026

Interesting We tend to think of “climate tipping points” as one big research area. They’re not. Attention is massively skewed: Greenland has 1000's of papers, while some tipping elements have <150. What risks are we missing simply because they’re harder to study? www.pnas.org/doi/10.1073/...

pnas.org

Uneven attention to climate tipping points | PNAS

Climate tipping points have moved from theoretical concern to a practical challenge for climate-risk assessment and governance. Yet whether scienti...

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Reposted by Prof Ian Hall

Kevin Anderson @kevinclimate.bsky.social · 07/10/2026

Quoted in the Guardian today on the technical hopium that, in my experience, has become widespread among many, usually senior, climate experts. www.theguardian.com/environment/...

theguardian.com

Scientists who put faith in technology less likely to take climate action

‘Techno-optimism’ may lead to reliance on unproven solutions at expense of societal changes needed

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Prof Ian Hall @ianhall.bsky.social · 07/10/2026

I am equally sceptical and firmly pro-emissions cutting. But for me, some carefully targeted research into OAE may be justified; however, as you point out, given finite resources and the urgency of emissions cuts, opportunity cost has to be central to that assessment.

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Prof Ian Hall @ianhall.bsky.social · 07/10/2026

Unfortunately, I don’t think we have the luxury of an either/or. But agreed: cutting emissions at source has to remain the absolute first priority.

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Prof Ian Hall @ianhall.bsky.social · 07/10/2026

OAE isn’t as simple as “add alkalinity, remove CO2” This perspective argues for a more nuanced, site-specific view: local carbonate chemistry, sediments, ecological effects and governance all shape outcomes. Promising? Maybe. Simple or settled? Definitely not. www.nature.com/articles/s43...

nature.com

Rethinking ocean alkalinity enhancement - Nature Reviews Earth & Environment

Ocean alkalinity enhancement (OAE) is often thought of as a global-scale geoengineering approach to mitigate climate change. This Perspective explores the environmental effects, geochemical constraint...

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Prof Ian Hall @ianhall.bsky.social · 07/10/2026

It's almost as if these companies don't care about the environment… UK oil refinery broke toxic pollution limits dozens of times, documents reveal www.bbc.co.uk/news/article...

bbc.co.uk

UK oil refinery broke toxic pollution limits dozens of times

Pollution was spilled into local rivers and protected sites, documents shared with the BBC suggest.

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Prof Ian Hall @ianhall.bsky.social · 06/10/2026

Drax datacentre could create nearly twice the yearly emissions of all Gatwick flights Calling wood “renewable” doesn’t make the CO2 released when it’s burned disappear. If forests take decades or more to recover that carbon, how should we count those emissions? www.theguardian.com/uk-news/2026...

theguardian.com

Drax datacentre could create nearly twice the yearly emissions of all Gatwick flights

Exclusive: Campaign group’s analysis of North Yorkshire plans finds datacentre would have to burn 4.9m tonnes of wood a year

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Prof Ian Hall @ianhall.bsky.social · 06/10/2026

If you want to see just how much climate change amplified the extreme summer of 2026 in Europe, this is a good place to start. …a summer that pushed heat, drought, wildfires and other extremes into truly remarkable territory, as climate science has predicted. climate.copernicus.eu/sites/defaul...

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Prof Ian Hall @ianhall.bsky.social · 06/10/2026

If we ask communities to leave oil in the ground, we also need to ask: where will the money for the alternative come from? Aid isn’t charity here...it's part of the price of choosing a different future.

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Prof Ian Hall @ianhall.bsky.social · 06/10/2026

Why would Indigenous communities accept oil extraction despite knowing its environmental costs? Sometimes, “acceptance” isn’t consent. It’s survival, negotiation, and making the best of unequal choices. theconversation.com/why-some-ind...

theconversation.com

Why some Indigenous communities don’t resist oil extraction in their territories

In the Ecuadorian Amazon, oil extraction reaches communities already facing environmental pressures, pressing needs and aspirations for a better life.

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Prof Ian Hall @ianhall.bsky.social · 06/10/2026

AMOC news is building: A climate nightmare lurks in the Atlantic. Europe is starting to pay attention. A slowdown of ocean currents that would disrupt life on the continent on an unthinkable scale. www.politico.eu/article/clim...

politico.eu

A climate nightmare lurks in the Atlantic. Europe is starting to pay attention.

A slowdown of ocean currents that would disrupt life on the continent on an unthinkable scale.

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Prof Ian Hall @ianhall.bsky.social · 05/10/2026

Dynamic instability of the Wilkes Subglacial Basin Ice Sheet, East Antarctica ...it contains enough ice to raise global mean sea level by 3–4 m. Its marine-based geometry makes it a tipping risk whose temperature thresholds and timing remain poorly constrained. www.nature.com/articles/s43...

nature.com

Dynamic instability of the Wilkes Subglacial Basin Ice Sheet, East Antarctica - Nature Reviews Earth & Environment

The Wilkes Subglacial Basin is a marine-based sector of the East Antarctic Ice Sheet that is vulnerable to ocean-forced melting and climate warming. This Review assesses changes in ice-sheet extent in...

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Prof Ian Hall @ianhall.bsky.social · 05/10/2026

Fire is natural in many forests. But hotter, drier conditions and more intense fires can overwhelm their ability to recover, pushing some landscapes toward shrubland or other ecosystems. That’s the real concern: a changing fire regime... edition.cnn.com/2026/10/04/u...

edition.cnn.com

Wildfires across the US are changing forest landscapes – and the tipping point may be on the horizon | CNN

As Monica Turner trekked across the western hills of Yellowstone National Park, the cold rain was inescapable. Even the constant movement of putting one foot in front of the other as she fought throug...

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Prof Ian Hall @ianhall.bsky.social · 05/10/2026

Australia has just recorded its second-hottest September on record, with the hottest September nights ever recorded. It’s worth thinking about what this should mean for decisions to continue approving new coal mines. How many more warnings will it take? www.theguardian.com/australia-ne...

theguardian.com

Australia experiences second hottest September on record as El Niño and climate crisis combine

Alpine areas also experience record-breaking heat with snow depth recorded at zero in Kosciuszko national park

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