Stephen Cornelius
@climatesteve.bsky.social
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Deputy Global Leader - Climate and Energy at WWF
#ClimateChange
I was @SteveJCornelius on X
Thanks to
@carbonbrief.org
for hosting the 11th and every challenging
#CBquiz
.
#WWF
team Bamboo-zeled had a great time and are proud of our 8th place out of 39 teams. Going to swot up on European environment ministers names for next year!
4 months ago
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The
#COP30
wrap-up report from
@iisd.org
's excellent Earth Negotiations Bulletin. This (and Carbon Brief's summary) are what you need to read!
enb.iisd.org/belem-un-cli...
#ClimateChange
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Summary report 10–21 November 2025
https://enb.iisd.org/belem-un-climate-change-conference-cop30-summary
8 months ago
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Woke up for last morning in Belem to see where Ministers got up to overnight at
#COP30
... but then the
#ashes
test cricket
8 months ago
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Much improvement is needed in
#COP30
draft. The roadmaps for transitioning away from fossil fuels and using deforestation are missing. A long day ahead for ministers and negotiators.
wwf.panda.org/wwf_news/pre...
#ClimateChange
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Latest drafts of COP30 texts “extremely disappointing”
WWF dismayed at failure to include roadmaps to transition away from fossil fuels and stop deforestation
https://wwf.panda.org/wwf_news/press_releases/?15409466/Latest-drafts-of-COP30-texts-extremely-disappointing
8 months ago
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IPBES
8 months ago
🌍 Did you know? Biodiversity loss, climate change, health, water & food security are linked!
IPBES
#NexusAssessment explores 70+ solutions for a sustainable future.🏡🧪 Discover how interconnected challenges need interconnected actions with
UNEP-WCMC
https://ow.ly/BXLH50Xpb9C
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70 responses to biodiversity loss: the IPBES Nexus Assessment - UNEP-WCMC
A landmark new report was launched today by the Intergovernmental Platform on Biodiversity and Ecosystem Services (IPBES). The Assessment Report on the Interlinkages Among Biodiversity, Water, Food and Health – known as the Nexus Report - offers decision-makers around the world the most comprehensiv…
https://ow.ly/BXLH50Xpb9C
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Proud to be part of the People’s
#Climate
March with friends from WWF and tens of thousands of others in social movements and communities committed to building a fairer and more sustainable future
#COP30
8 months ago
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Insidious misinformation and disinformation around
#ClimateChange
sow confusion and delay
#ClimateAction
. This is an important development. See also Cranky Uncle to understand how science denial works...
app.crankyuncle.info/home
#COP30
add a skeleton here at some point
8 months ago
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Climate Action Tracker
8 months ago
CAT Global Update 2025 🚨 Ten years after the
#ParisAgreement
we see little to no measurable progress in warming projections - for the fourth consecutive year. The 2035
#NDCs
have made no difference to our warming outlook. 🔗
bit.ly/CAT_Global_2...
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As
#COP30
kicks off in Belém’s heat and downpours, the world must
#CloseTheGap
on climate action - more mitigation, adaptation and finance We also need a Nature Package to safeguard forests and biodiversity - because the Amazon COP should deliver for people and planet.
#ClimateAction
8 months ago
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This is worth a read - factchecking claims (myths) about solar power
#ClimateChange
add a skeleton here at some point
11 months ago
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🌍⚖️ Sébastien Duyck
12 months ago
🔥 ⚖️ 🌐HAPPENING NOW: Historic
#ClimateJustice
Ruling being delivered by the 🇺🇳 🧑⚖️ International Court of Justice. 🚨This ruling could signal a new dawn for climate law & accountability 📝 🧵 Live thread below with context, summary & analysis 👇
#ClimateJusticeAO
#AOLetsGo
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A good start to the Climate Innovation Forum as part of
#LondonClimateActionWeek
including telling people that
#ClimateAction
is happening
#LCAW25
#CIF25
#ClimateChange
about 1 year ago
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I'm looking forward to meeting people at
#LondonClimateActionWeek
Before then, read this op-ed by the mayors of London and Paris on disinformation and misinformation and the backlash to
#ClimateAction
www.theguardian.com/commentisfre...
#ClimateChange
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In London and Paris, we’ve experienced vicious backlash to climate action. But we’re not backing down | Sadiq Khan and Anne Hidalgo
Around the world, well-funded, organised climate deniers are spreading lies about the crisis. We call on governments and tech companies to step up, say London mayor Sadiq Khan and Paris mayor Anne Hid...
https://www.theguardian.com/commentisfree/2025/jun/23/london-paris-vicious-backlash-climate-action-sadiq-khan-anne-hidalgo
about 1 year ago
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Ed Hawkins
about 1 year ago
The village of Blatten in Switzerland is partly buried by the collapse of a glacier which melted because our greenhouse gas emissions warmed the climate. Another reminder that choosing to not invest enough today to reduce emissions means far greater costs for society in the long term.
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Weatherwatch: The Met Office fights back against climate misinformation The most impressive part of the Office’s misinformation ‘toolkit’ is its set of answers to climate deniers’ questions
www.theguardian.com/news/2025/ma...
#ClimateChange
@metoffice.bsky.social
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Weatherwatch: The Met Office fights back against climate misinformation
The most impressive part of the Office’s misinformation ‘toolkit’ is its set of answers to climate deniers’ questions
https://www.theguardian.com/news/2025/may/23/weatherwatch-the-met-office-fights-back-against-climate-misinformation?CMP=share_btn_url
about 1 year ago
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Parents for Climate
about 1 year ago
Here it is, finally. The truth. In a landmark
#greenwashing
legal case brought by
@parentsforclimate.bsky.social
,
#EnergyAustralia
has publicly acknowledged that offsets do not undo the harms of burning fossil fuels & apologised to more than 400,000 customers of its carbon
#offsetting
product
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Some amazing nature photos here (and some awfully sad ones in the 'Humanity vs Nature' category)
www.theguardian.com/artanddesign...
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A seadragon and flushing worms: Environmental Photography award winners – in pictures
Winning images from the 2025 of Prince Albert II of Monaco Foundation Environmental Photography award, selected from 10,000 images submitted globally
https://www.theguardian.com/artanddesign/gallery/2025/may/15/a-seadragon-and-flushing-worms-environmental-photography-award-winners-in-pictures
about 1 year ago
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Carbon Brief
about 1 year ago
NEW – Analysis: Clean energy just put China’s CO2 emissions into reverse for first time |
@laurimyllyvirta.bsky.social
Read here:
buff.ly/6eAcjRU
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Stephen Cornelius
Doug Parr
about 1 year ago
Unexpected - EU companies increasingly aligned with climate action “Those vocally organising to oppose the energy transition achieve outsized importance across public debate. However, there is a larger, quieter majority that are supportive of decarbonisation”
www.theguardian.com/environment/...
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European firms ramping up lobbying for climate action, report finds
Research shows companies ‘aligned’ with strategies to meet climate goals have risen from 3% in 2019 to 23% in 2025
https://www.theguardian.com/environment/2025/may/14/european-firms-ramping-up-lobbying-for-climate-action-report-finds
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Jan Rosenow
about 1 year ago
Solar energy has consistently been underestimated. Today, it adds more capacity/yr to global grid than any other source in history. If trend continues, solar will deliver more electricity generation/yr than any technology before it. Graph from
@nathanielbullard.com
- great newsletter
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Sam Burgess
about 1 year ago
How are
#heatwaves
changing in
#Europe
? According to the European
#Climate
Report, 2024 saw: 🌡️ Record-breaking ‘strong heat stress’ days and tropical nights in southeastern Europe during summer 🥵 In recent decades, heat has been the leading cause of reported deaths due to extreme weather 🌍🧪⚒️🌡️🌊
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Leo Hickman
about 1 year ago
Pope Francis last year on those who deny climate science: "There are people who are foolish, and even foolish if they show you them research. They don't believe it…They don't understand the situation or because of their interest, but climate change exists."
www.dailymail.co.uk/news/article...
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Pope Francis uses first US TV interview to slam climate change deniers
Pope Francis spoke out against climate change deniers, calling them 'fools' in his first ever interview on American television.
https://www.dailymail.co.uk/news/article-13347387/Pope-Francis-uses-TV-interview-slam-climate-change-deniers.html
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Power-sector CO2 hits ‘all-time high’ in 2024 despite record growth for clean energy
www.carbonbrief.org/power-sector...
“Solar power has become the engine of the global energy transition..."
@carbonbrief.org
over 1 year ago
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Prof. Stefan Rahmstorf
over 1 year ago
The 2024 state of the climate report: a report by leading international scientists on recent trends in planetary vital signs. (Ignore at your peril.)
academic.oup.com/bioscience/a...
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Seth Abramson
over 1 year ago
In a world of Matts, be a Derek.
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Half of world’s CO2 emissions come from 36 fossil fuel firms Coal, oil and gas are the biggest driver of
#ClimateChange
www.theguardian.com/environment/...
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Half of world’s CO2 emissions come from 36 fossil fuel firms, study shows
Researchers say data strengthens case for holding firms to account for their contribution to climate crisis
https://www.theguardian.com/environment/2025/mar/05/half-of-worlds-co2-emissions-come-from-36-fossil-fuel-firms-study-shows
over 1 year ago
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Valérie Masson-Delmotte
over 1 year ago
I receive numerous requests from journalists regarding the current situation with the Intergovernemental Panel on Climate Change. I am not involved in the work of the IPCC for the 7th Assessment Cycle (AR7). 1/...
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Prof Michael Meredith 🌊🧪🥼❄️
over 1 year ago
Climate change will increasingly impact the ocean around Antarctica, and the life within it, as it progresses. Read the new paper by the excellent Ben Fisher and colleagues on how this will happen, what are the implications, and how we can improve our ability to predict the key changes. 🌊❄️🥼🧪
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Climate-driven shifts in Southern Ocean primary producers and biogeochemistry in CMIP6 models
Abstract. As a net source of nutrients fuelling global primary production, changes in Southern Ocean productivity are expected to influence biological carbon storage across the global ocean. Following...
https://bg.copernicus.org/articles/22/975/2025/
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Happy Valentine's Day chocolate lovers... “excessive heat can contribute to a reduction in the quantity and quality of the harvest” Need to cut emissions and adapt
#ClimateChange
www.theguardian.com/environment/...
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Climate crisis contributing to chocolate market meltdown, research finds
Scientists say more-frequent hotter temperatures in west African region are part of reason for reduced harvests and price rises
https://www.theguardian.com/environment/2025/feb/13/climate-crisis-contributing-to-chocolate-market-meltdown-research-finds
over 1 year ago
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Andrew Dessler
over 1 year ago
My latest on The Climate Brink: No, renewables don't need expensive backup. In fact, renewables push the most expensive fossil fuel producers out of the market, saving money for the economy.
www.theclimatebrink....
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Simon Evans
over 1 year ago
NEW: Global EV sales grew 18% year-on-year in Jan 2025 Was this due to the "devastating collapse" of 21% growth in Europe? The "stalling" 12% growth in China? Maybe the "plunging" 22% rise in US/Canada? Or "faltering" 50% rest-of-world growth…? Data: Rho Motion 🤷♂️
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Stephen Cornelius
Our World in Data
over 1 year ago
In 2004, it took the world a year to add a gigawatt of solar power — now it takes a day
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Worth looking at this deck of trends around the world:
#ClimateChange
already has consequences- from coffee, panama canal drying, to 3-years rain in a day in Valencia Fossil fuel use continues to rise Wind, solar, EV investments up, but not fast enough to compensate for increasing
#energy
demand
add a skeleton here at some point
over 1 year ago
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Stephen Cornelius
Copernicus ECMWF
over 1 year ago
How unusual were 2023 and 2024 compared to the global warming trend, averaging an increase of around 0.2°C per decade? Dive into the analysis of anthropogenic and natural factors 👉
bit.ly/40kQpcz
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James Murray
over 1 year ago
This is a very strong argument in favour of climate action from
@elpinchbeck.bsky.social
that you don’t hear often enough. It is both conservative and progressive.
www.thetimes.com/article/b729...
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UK’s net-zero guru: ‘Only Londoners say rural folk can’t adapt’
Emma Pinchbeck wants to dispel the myth that saving the planet will mean austere lifestyle changes and says the countryside is forever changing
https://www.thetimes.com/article/b7297373-57d2-49a9-ac97-7156b91ff031?shareToken=d61908119e4fbd73ff7787eef2304164
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A beautiful Blue Dragon we spotted in a rock pool - they eat Portuguese man o' war and other similar siphonophores and absorb their stings as their own defence. The kids knew what it was from National Geographic, but I, and a long-time fisherman friend, had never heard of them!
over 1 year ago
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Stephen Cornelius
Ember
over 1 year ago
Coal is nearing its end in the EU electricity mix 📉 10 countries were already coal-free and a further 6 countries had less than 5% coal power in 2024. Even Poland – the EU’s most coal-dependent country – saw coal power fall to 54% in 2024, down from 70% just 2 years ago.
ember-energy.org/lat...
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Stephen Cornelius
IPBES
over 1 year ago
Environmental risks dominate
@weforum.org
Global Risks Report 2025. Extreme weather &
#biodiversity
loss top 10-year threats. Pollution rises in short-term urgency. 🌍 The IPBES
#NexusAssessment
just showed how important it is to tackle interlinked crises together.
www.weforum.org/stories/2025...
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Climate records broken like a broken record! It is worth a look at this report by
#CopernicusClimate
Change service The 2024 Annual Climate Summary Global Climate Highlights 2024
climate.copernicus.eu/global-clima...
@copernicusecmwf.bsky.social
#ClimateChange
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Global Climate Highlights 2024
This section looks at the global Climate Indicators for which data are available for all or part of 2023. For more details on each, visit the respective Climate Indicator page. The page will be update...
https://climate.copernicus.eu/global-climate-highlights-2024
over 1 year ago
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Stephen Cornelius
Robin Harvey
over 1 year ago
Today
#WEF
published its Global Risks Report 2025, which identifies the top four most severe risks over the next ten years to be extreme weather events, biodiversity loss and ecosystem collapse, critical change to Earth systems and natural resources shortages
www.weforum.org/press/2025/0...
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