This is a very worthwhile read 👇

Slowing emissions reductions means more financially crushing #climate change - was nothing learned from the pandemic? It’s the area under the curve that matters, in this case greenhouse gas emissions over time. www.bbc.co.uk/news/article...

As we in Europe recover from another heatwave, others brace for the next one and other extreme weather events pepper the globe, weather attribution science updates us on the contribution Climate Change is making to all these events - but how does it work? drtomharris.substack.com/p/how-much-i...

A new study may have helped to explain how the ocean storage of carbon changes with sea level over the paleoclimate. When sea levels are high, ocean carbon sink drops leading to high atmospheric CO₂ which keeps temperatures and therefore sea levels high. #carbonsink #oceans #paleoclimate #CO2

⚠️🔥⚠️ An 'exceptional' red warning for wildfire has been issued for much of England and Wales. A post on LinkedIn by David Shukman explains the dangers: www.linkedin.com/posts/david-...

🚨 The data is finally in for the first quarter of the year, and it's not looking good... Global ocean heat content just set another new record high! Data (anomalies) & methods from www.ncei.noaa.gov/access/globa...

Sea Level Rise is baked in for centuries with only the rate uncertain. Driven by thermal expansion, melting ice sheets and land height changes, and exacerbated by ever more extreme storm surges, protection and adaptation is becoming critical. drtomharris.substack.com/p/coastal-pr... #sealevelrise

Another study by Bischof et al. 2023 found in dedicated model simulations "that cold subpolar North Atlantic sea surface temperatures significantly increase heat wave duration and magnitude downstream over the European continent." ⬇️ agupubs.onlinelibrary.wiley.com/doi/10.1029/...

The Barents Sea, a shallow area on the edge of the Arctic Ocean played an important role in the evolution of the ice age but could also provide a useful backstop to a weakening AMOC. #climatechange #Arctic #AMOC #paleoclimate #oceancirculation #iceage drtomharris.substack.com/p/the-barent...

This is a very interesting analysis of deforestation from Hannah Ritchie. Well worth a read 👇 hannahritchie.substack.com/p/deforestat... #deforestation #food #imports

For context the 2023 peak was 2.03ºC and the 2016 strong event was 2.72ºC peak. Model mean of 4ºC forecast is just insane 🤯 This is going to get ugly

Every heatwave is a glimpse of a possible future. This is a good time to decide which future we want.

Link a short overview on currents We trigger a non linear reaction of upper currents in the oceans and break downs of deeper currents Not just the AMOC it's way worse Stratification is the main driver Internal tides 5x times speed up Great gyres can abruptly change #climate #earth

Within a system as complex as the Earth’s climate, small events in one place can trigger and be triggered by seemingly unconnected events thousands of miles away. We are living in a Domino Maze and we keep nudging the start tile. drtomharris.substack.com/p/the-planet... #climatechange #cascade

Much of Europe is sweating in an exceptional heat wave. Heat in Europe has increased 4 times more than in other mid-latitude areas, which has been linked to the Atlantic #coldblob in several studies. #AMOC Slide from a talk I'm about the present at London Climate Action Week #LCAW2026. 1/

Dangerous and potentially historic extreme heat is forecast to impact parts of western Europe this week. We already know that these temperatures are made at least 5x more likely due to human-caused climate change. Stay safe! Explore the attribution data at csi.climatecentral.org/climate-shif...

Today is #ShowYourStripes Day! It is a global moment to share our concern about how the climate is changing. This is my little contribution - I hope you enjoy it 🕺, if so please like ❤️ share 🔁 and discuss 💬 drtomharris.substack.com/p/show-your-... #globalwarming #climatechange #climateimpacts

Mongolia is warming so fast that permafrost coverage has fallen from ~63% of the country in the 1970s to just 26–29% today. The consequences are already visible in this picture essay: expanding thermokarst ponds, collapsing pingos, waterlogged pastures… www.theguardian.com/artanddesign...

My latest on Substack: open.substack.com/pub/climatec...

The upcoming ‘Super’ El Niño is, quite rightly, getting a lot of attention as the impacts are likely to be severe over the coming 12 months. There is more to this story though, as I discuss in this week’s article. drtomharris.substack.com/p/not-just-a... #elnino #ENSO #climatechange #tippingpoint

Take the difference in temperature for each day, January 1, 1950 through June 13, 2026, from the exact same day 10 years earlier, to get a "daily decadal temperature difference." Graph those points with a linear trendline. The current rate of warming is about 0.32°C per decade.

Are we willing to invest just five cents per person per year to maintain one of the world’s most important climate monitoring systems? That provides crucial information about a potentially existential risk for Europe?

In case you were wondering why the upcoming Ell Nino is being described as a "Goliath", take a look at these projections with the 2023 and 2026 peaks added for scale... #elnino #ENSO

The global assessment of climate change indicators is updated to 2025: essd.copernicus.org/articles/18/... In a @uk.theconversation.com blog, focus is on rising energy imbalance as the gap between absorbed sunlight by the planet and infrared heat loss is growing: theconversation.com/earths-energ...

Is climate overshoot truly a temporary state? With 2024 registering at 1.6°C and an El Niño looking to smash even that record, we have functionally entered the era of climate overshoot. But are our frameworks for "getting back" to sub 1.5°C realistic? drtomharris.substack.com/p/the-climat...

Sea level rise is accelerating and is now rising at 4.5mm a year. A lot of further rise is now committed to and unavoidable, but a great deal is still under humanity’s control. New research helps show what is inevitable and what is our choice. drtomharris.substack.com/p/rising-con... #sealevelrise

Two studies show that the Arctic Ocean may have passed a tipping point leading to a near complete lack of fish. The first study reports on barren waters north of 82º while the second exposes the biochemical drivers. #climatechange #Arctic #seaice #tippingpoint #biochemistry #foodchain #carbonsink

A new study has assessed the time horizon for the Earth Energy Imbalance to stop rising and start to fall under a high mitigation scenario. The result is a delay more than 10 years longer than earlier estimates. doi.org/10.1029/2025... #climatechange #EEI #warming #emissions #pipeline

There's more energy arriving than leaving Earth due to rising greenhouse gas levels and this is warming #climate & this energy imbalance is growing - a new study led by Herve Douville uses an observed reconstruction to infer this trend will not reverse before the early 2040s: doi.org/10.1029/2025...

In this article, the new CMIP7 Emissions Scenarios reveal how much the world will rely on Carbon Dioxide Removal to stand any chance of holding to a 2ºC rise in temperature, let alone avoid a 3ºC world. drtomharris.substack.com/p/the-carbon... #climatechange #CMIP7 #emissions #CDR #SRM #IPCC

The Elephant in the Room - Why the average UK citizen is dragging around a five-tonne energy ghost. Today is the UK’s Overshoot Day. It is the day we officially "break the bank" of the UK’s share of the Earth's natural resource budget for the year. #sustainability #overshoot #ecology #resources

Are we using the wrong yardstick to assess climate risks? For decades Equilibrium Climate Sensitivity has been the gold standard, but hard to measure. But as we change other Earth systems, treating the response as just a CO₂ driven constant is inadequate. drtomharris.substack.com/p/anthropoge...

Coal burning is lowering the efficiency of solar power through air pollution blocking sunlight. This is not trivial either. In 2023 it caused a 5.8% reduction, equivalent to 111 TWh—the amount generated by 18 medium-sized coal-fired power plants. #solar #energytransition #coal #power #pollution

Stardust, the Solar Radiation Management, or Geoengineering, company has published details of its particle for the first time. Interesting NYT article on the debate this raises👇 www.nytimes.com/2026/05/14/c... #SRM #geoengineering #SAI #climatechange #climatestabilisation

Fascinating insights into research on the Doomsday Glacier👇 www.nytimes.com/2026/05/11/c...

Fact-check: Many scientists have been denying the 'acceleration' of global warming for years. Even now that their own evidence supports it, many are still downplaying it. The Earth's Energy Imbalance more than doubled. NASA's satellite data is not in line with models!

New studies have been published explaining the recent decline in Antarctic sea ice, the migration of warm Circumpolar Deep Water, the undermining of floating ice shelves and record breaking glacial retreat. drtomharris.substack.com/p/new-studie... #climatechange #Antarctica #sealevelrise #oceans

Following on from this article, here is an excellent interview with Tzeporah Berman, chair of the Fossil Fuel Non‑Proliferation Treaty Initiative about the summit. Well worth watching 👇 www.youtube.com/watch?v=Y822...

Hantavirus is making the headlines, while its climate change and land destruction that's driving its increasing prevalence. Infectious disease increases are just one of the consequences highlighted by the Institute of Actuaries recent report on the Wild Unknown. edition.cnn.com/2026/05/09/a...

The coming famine was heading our way before Hormuz, maybe its the final wake-up call? A new report spells out the coming nature and climate risks, and the societal and economic impacts. actuaries.org.uk/planetary-so... #nature #climatechange #foodsecurity #sustainability #risk #impacts #famine

Well worth a read 👇

What a great insight 👇

David Attenborough is 100 tomorrow 🥳 If he's been as big an influence on you as he has to me, sign his on-line Birthday card here: 38d.gs/zqga

Water Vapour is more powerful as a greenhouse gas than CO₂ and there is a lot more of it. So why is it not to blame for global warming? The answer is its an amplifier, not a baseline forcing. drtomharris.substack.com/p/why-do-we-... #climatechange #watervapour #hydrology #watercycle #feedback

The normalcy bias we're all experiencing for global sea-surface temperatures becomes apparent if we look at the graph of SSTs 1982-2026 and remove the last three years 2023, 2024, 2025 from the picture:

This is a must read 👇 Not the most uplifting post for a Friday afternoon, but an honest and well thought out assessment with sound and actionable advice. thehonestsorcerer.substack.com/p/the-persia... #iran #economy #crisis

👀 This should be front page news globally. The fact that it’s not speaks volumes about the capture of the media by vested interests. 57 countries, representing 1/3 of the world’s economy, met to phase out fossil fuels www.carbonbrief.org/santa-marta-... #climatechange #fossilfuels #energytransition

A physics-based analysis concludes that this year will be the warmest, not second warmest. In any case, we can learn something about climate change. See 2026 On Track for Warmest Year – mailchi.mp/caa/2026-on-... Also available on Substack: jimehansen.substack.com/p/2026-on-tr...

New AI Approach Reveals Ocean Currents in Unprecedented Detail. The new technique uses deep learning to recognise subtle patterns in ocean surface temperature caused by currents that conventional analysis can’t resolve. #oceans #currents #oceanography #models