Richard Allan
Professor of climate science at the University of Reading: met.reading.ac.uk/~sgs02rpa/
- Global #climate hazards @ukhsa.bsky.social 5 Feb 2026: 🌀 storms hit Portugal/Spain, Brazil, Madagascar 🌧️ floods & landslides across Colombia, Morocco, DR Congo 🏔️ avalanche in Italy 🥀 drought grips Kenya ❄️ coldwave affects Lithuania, USA www.met.reading.ac.uk/~sgs02rpa/ex...
- 2 new papers by Cooper, Armour & co use past climates, from the Last Glacial Maximum 21,000 yrs ago & the Pliocene 2.6-5.3 million yrs ago, to infer that the planet will warm about 3 degrees C for a doubling of CO2 as a best estimate for present day. doi.org/10.1126/scia... doi.org/10.1073/pnas...
- Great news, the price of liquid death is dead low at the moment! www.independent.co.uk/life-style/m...
- Global #climate hazards @ukhsa.bsky.social 29 Jan 2026: 🌀 storms hit Portugal, Spain & UK 💦 #floods & landslides Mozambique, Zimbabwe, Greece, Afghanistan, Indonesia 🌡️ #heatwave Australia 🥀 #drought Somalia ❄️ #snow Japan, Pakistan, Afghanistan, Syria & USA www.met.reading.ac.uk/~sgs02rpa/ex...
- Artificially offsetting greenhouse gas warming using solar geoengineering to reflect away sunlight may be more costly than without if cut off suddenly, leading to “termination shock” of rapid warming: @iopp-environment.bsky.social study via @newscientist.com iopscience.iop.org/article/10.1...
- 10 key #climate science insights from 2025: doi.org/10.1017/sus.... Guest post by @carbonbrief.org: www.carbonbrief.org/guest-post-1...
- Global #climate hazards @ukhsa.bsky.social 23 Jan 2026: 🌧️ #floods + landslides Mozambique/Malawi/SAfrica/Zimbabwe, Tunisia, Syria, Indonesia, Australia, New Zealand, Peru ❄️ #avalanche & severe snow Switzerland/Austria, Russia 🔥 #wildfire Chile www.met.reading.ac.uk/~sgs02rpa/ex...
- A warm & wet December 2025 in the UK but some longer term rainfall deficits in the north east & south east though the @ukceh.bsky.social hydrological outlook is normal following dry to wet transition: nrfa.ceh.ac.uk/sites/defaul...
- Global #climate hazards @ukhsa.bsky.social: ⛈️Storms UK/France/Germany, Argentina/Brazil 🌧️Floods/Landslides Albania, Australia, Malaysia, DRCongo/Mozambique/SAfrica/Tanzania/Zambia 🔥Wildfire Argentina/Chile, SAfrica 🏔️Avalanche Austria, France, USA 🥀Drought Kenya www.met.reading.ac.uk/~sgs02rpa/ex...
- Reposted by Richard AllanThis time, at the 2026 University of Reading Department of #Meteorology's Research Away-Day, we had a larger auditorium in the #PalmerBuilding (and hence more space) than during the same event in 2024. (click on thumbnail to see the composite photo). #ResearchAwayDay @uniofreading.bsky.social
- Emerging #drought hotspots across Europe, southern Africa, northern South America + western North America based on new approach considering growing season soil moisture available to plants - @natureportfolio.nature.com study by Emily Black @unirdg-met.bsky.social: doi.org/10.1038/s415...
- I’d wondered about burying trees to lock away carbon and assumed it’d be too slow but here’s a proposal to sink them in the Arctic Ocean (via @newscientist.com): www.nature.com/articles/s44...
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- Global #climate hazards @ukhsa.bsky.social: ❄️ #snow & storms affect Europe, Iran/Syria & USA 🌧️ #floods across France, Spain, Afghanistan, Indonesia, Iran, Palestine & USA 🔥 #wildfires in Australia, Chile 🥀 #drought over Somalia 🌩️ #lightning strikes S Africa www.met.reading.ac.uk/~sgs02rpa/ex...
- Ten New Insights in #Climate Science 2025 published @universitypress.cambridge.org Global Sustainability: doi.org/10.1017/sus.... Report @futureearth.bsky.social 10insightsclimate.science
- Reposted by Richard AllanThe @uniofreading.bsky.social has been a leading advocate for #climate education to better prepare young people for changing careers & society, as explained by our head of school Andrew Charlton-Perez OBE in this @uk.theconversation.com article: theconversation.com/climate-educ...
- The #uksnow has even reached RG1 (5/10)!
- Reposted by Richard AllanNEW – Analysis: UK renewables enjoy record year in 2025 – but gas power still rises ✍️ by @drsimevans.carbonbrief.org and Ho Woo Nam Read here ➡️ buff.ly/YTa31NF
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- Jump in SSTs 2023-24 from dual tropical Pacific warming centres & eastward-extended North Atlantic jet stream, boosted by a large global energy imbalance driven by rising grenhouse gases & falling aerosol that was exacerbated by preceding extended La Niña heat sequestration: doi.org/10.1038/s432...
- Global #climate hazards @ukhsa.bsky.social 18th Dec 2025: 🌧️ #floods & landslides in Bolivia, Morocco, Palestine, Malaysia & Vietnam ⛈️ storms hit Brazil & USA 🔥 #wildfire affects Chile 🏭 #smog over Bosnia & Herzegovina, N India ❄️ heavy #snow covers W Canada www.met.reading.ac.uk/~sgs02rpa/ex...
- Reposted by Richard Allan
- Latest @ukceh.bsky.social UK hydrological summary for November 2025 - very wet with shift from #drought to #flood concerns and consistent with an expected more variable and extreme water cycle in a warming #climate: nrfa.ceh.ac.uk/sites/defaul...
- Emerging cold-fresh/warm-salty dipoles in the N Atlantic during 2014 with implications for ocean circulation - more analysis with my Dad in @tandfresearch.bsky.social! doi.org/10.1080/0705... Animation of OSCAR estimated ocean currents just for fun ⬇️
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- Global #climate hazards @ukhsa.bsky.social 12th December 2025: 🌧️ #flooding & landslides across Malaysia, Thailand, Indonesia, Vietnam, Sri Lanka, Iraq, DR Congo, USA & Brazil 🔥 #wildfire in Australia ⛈️ winter storm hits Palestine www.met.reading.ac.uk/~sgs02rpa/ex...
- Reposted by Richard AllanFestive tunes have arrived @unirdg-met.bsky.social following our last weather & climate discussion!
- The @uniofreading.bsky.social authors of @ipcc.bsky.social 7th assessment met in Paris with 2 @unirdg-met.bsky.social covering physical processes & climate stabilisation pathways + 1 @unirdg-law.bsky.social on #climate law aspects of mitigation: www.ipcc.ch/assessment-r...
- Global #climate hazards @ukhsa.bsky.social 5th Dec 2025: 🌧️ #floods & landslides affect South & Southeast Asia, Bolivia, Peru & South Africa 🌩️ storms hit DR Congo & New Zealand www.met.reading.ac.uk/~sgs02rpa/ex...
- Global #climate hazards @ukhsa.bsky.social 28 Nov 25 🌧️ #floods & landslides Albania, Italy, South Africa, French Polynesia, Malaysia, Indonesia, Philippines, Vietnam, Mexico ⛈️ storms hit eastern Australia, Brazil, USA, Sri Lanka & India 🥀 #drought grips Somalia www.met.reading.ac.uk/~sgs02rpa/ex...
- Slow late November growth in #Arctic sea ice extent, 2nd only to 2016 based on @nsidc.bsky.social data: nsidc.org/sea-ice-toda...
- Global #climate hazards @ukhsa.bsky.social 21 Nov 2025: ⛈️ storms hit Chile/Argentina, Portugal & UK 🌧️ #floods & landslides affect Italy/Slovenia, France, Republic of the Congo, Thailand, Vietnam, Indonesia, USA www.met.reading.ac.uk/~sgs02rpa/ex...
- Daily extreme precipitation over land increases ~40% by 2100 in high resolution single model ensemble under high greenhouse gas emissions scenario with over half driven by enhanced mesoscale convergence that's underestimated by factor of 3 in low-resolution simulations: doi.org/10.1038/s415...
- As well as protecting health, China’s efforts at cleaning up aerosol particle pollution has restored sunlight to Pacific Ocean, once robbed by the haze that was artificially brightening clouds, which unfortunately adds to warming - @uk.theconversation.com podcast: theconversation.com/how-china-cl...
- As well as rapidly cutting CO2 emissions, tackling short-lived warming agents like methane & surface ozone pollution boosts action to limit #climate warming + counteracts warming from cleaning our air of harmful aerosol particles that have robbed us of sunlight: theconversation.com/the-fast-fix...
- Our heat pump doing it’s job taking in cold air, extracting energy to heat our house and exhaling even colder air that has kept the dusting of snow happy in its artificial frost hollow long after it had melted away elsewhere!
- October 2025 quite dry in UK apart from N Ireland/west Scotland/Kent with below average river flows in east & depleted groundwater/reservoirs but wetter soils with low groundwater-fed river flows expected to continue despite early November deluges - @ceh.org summary: nrfa.ceh.ac.uk/sites/defaul...
- Global #climate hazards @ukhsa.bsky.social 14 Nov 2025: 🌀 tropical cyclones affect Philippines, Taiwan, Japan ⛈️ storms hit Brazil, Portugal, Spain, Burundi 🌧️ landslides #floods DR Congo, Pakistan, Thailand, Indonesia 🏭 smog Delhi/India 🥀 #drought Iran, Somalia www.met.reading.ac.uk/~sgs02rpa/ex...
- New assessment reported @nature.com finds weaker land carbon sink but stronger ocean sink than previously thought with #climate change and deforestation stifling how much carbon the continents can take up, leaving more behind to raise atmospheric CO2 levels: doi.org/10.1038/s415...
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- Global #climate hazards @ukhsa.bsky.social 7th Nov 25: 🌀 Tropical Cyclones affect Caribbean and South East Asia 🌧️ Landslides & floods hit Uganda/Kenya ⛈️ Storms strike Brazil ⚪ Giant Hail in northeast Australia 🏔️ Avalanches in Italy & Nepal www.met.reading.ac.uk/~sgs02rpa/ex...
- New @royalsociety.org report assesses geoengineering #climate to mask human caused warming by artificially injecting aerosol haze to reflect sunlight, arguing it can only be used as a well coordinated compliment to deficient mitigation of greenhouse gas emissions: royalsociety.org/news-resourc...
- Reposted by Richard AllanNew insights into slow progression of #flooding from Lakes Victoria, Kyoga & Albert + expansion of Sudd Wetlands in East Africa 2019-2024 enable better forecasting – new blog by Douglas Mulangwa: socialmetwork.blog/2025/10/28/w...
- Impact of flights on global warming severely underestimated by many carbon calculators & offset schemes that don’t properly account for taxiing, sub-optimal routing or non-CO2 climate effects which are larger component: www.newscientist.com/article/2502... Research paper: doi.org/10.1038/s432...
- Global #climate hazards @ukhsa.bsky.social 31 Oct 2025: 🌀 Hurricane MELISSA hits Caribbean 🌀 Cyclone MONTHA affects India ⛈️ storms across USA 🌧️ #floods over Colombia, Indonesia, Vietnam, Spain, South Sudan 🏔️landslides in Uganda & Papua New Guinea www.met.reading.ac.uk/~sgs02rpa/ex...
- Keeping the planet below the 2°C Paris #climate limit will ensure almost all Antarctic ice shelves remain, while most will eventually melt as after warming passes 4.5°C with the potential for 10 metres of sea level rise - based on @nature.com study: doi.org/10.1038/s415...
- Rapid warming from rising greenhouse gases + declining aerosol particle pollution are worsening extremes, depleting groundwater & limiting carbon uptake by land - #10ClimateInsights: 10insightsclimate.science
- Reposted by Richard AllanExpert comment about more destructive tropical cyclones as the world warms: theconversation.com/hurricane-me...
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- Global #climate hazards @ukhsa.bsky.social: 🌀 tropical cyclone MELISSA in Caribbean 💨 storm Amy France/UK ⛈️ storms Brazil, Colombia, New Zealand, Philippines 🏭 smog N India 🌫️ freezing fog Finland 🌧️ #floods Indonesia, Mexico 🥀 #heatwave & #drought Mali & Zambia www.met.reading.ac.uk/~sgs02rpa/ex...
- Forecasting renewable energy droughts (and floods) is increasingly crucial in developing a flexible grid and stable electricity prices: theconversation.com/how-a-more-f...
- Landmark global shipping deal to reduce emissions suspended as Trump spouts usual nonsense www.bbc.com/news/article...
- Latest @ukceh.bsky.social UK hydrological summary for September 2025 - some respite from dry conditions with high river flow in northwest but low in parts of the east and depleted groundwater across many regions: nrfa.ceh.ac.uk/sites/defaul...
- Global #climate hazards @ukhsa.bsky.social 17 Oct 2025: 🌀 tropical storm JERRY affects Guadeloupe, Martinique 🌧️ #floods across DR Congo, South Sudan, Tunisia, Nigeria, Guatemala, Venezuela, Mexico, USA ⛈️ storms hit Malaysia www.met.reading.ac.uk/~sgs02rpa/ex...
- Unseasonal #drought and heat combine with unusual fuel buildup from previous wet years to intensify wildfires as a consequence of human caused warming of #climate
- 🚨 Launched: State of Wildfires Report 2024-25 The Americas felt the harsh reality of what it means to live on a more fire-prone planet, with extreme #wildfire episodes made 2-3 times more likely by #climate change. 🔥 Full details via our brand new website: stateofwildfires.com/latest-report/
