Holly Simpkin
@hollysimpkin.bsky.social
Climate comms @ PIK, views are mine
Reposted by Holly Simpkin
Scientists at the Planetary Science Pavilion on #COP30: Most of the 1.5°C CO₂ budget is gone. 2025 emissions still rising. ~4 years of budget left. We need 5% cuts yearly & roadmap to phase out fossil fuels. Science must stay in the text, not be scrubbed.
planetarysciencepavilion.org/2025/11/14/s...
planetarysciencepavilion.org/2025/11/14/s...
November 15, 2025 at 12:57 PM
Scientists at the Planetary Science Pavilion on #COP30: Most of the 1.5°C CO₂ budget is gone. 2025 emissions still rising. ~4 years of budget left. We need 5% cuts yearly & roadmap to phase out fossil fuels. Science must stay in the text, not be scrubbed.
planetarysciencepavilion.org/2025/11/14/s...
planetarysciencepavilion.org/2025/11/14/s...
Reposted by Holly Simpkin
Really important paper led by my @iiasa.ac.at colleague Alex Nauels www.nature.com/articles/s41...
“The difference between decisive climate action today and continued high emissions is not just measured in degrees of warming but also in meters of sea-level rise” 👏👏👏
“The difference between decisive climate action today and continued high emissions is not just measured in degrees of warming but also in meters of sea-level rise” 👏👏👏
Multi-century global and regional sea-level rise commitments from cumulative greenhouse gas emissions in the coming decades - Nature Climate Change
It is important to understand how much long-term sea-level rise is already committed due to historical and near-term emissions. Here the authors use a modelling framework to show how decisions on glob...
www.nature.com
October 24, 2025 at 10:40 AM
Really important paper led by my @iiasa.ac.at colleague Alex Nauels www.nature.com/articles/s41...
“The difference between decisive climate action today and continued high emissions is not just measured in degrees of warming but also in meters of sea-level rise” 👏👏👏
“The difference between decisive climate action today and continued high emissions is not just measured in degrees of warming but also in meters of sea-level rise” 👏👏👏
Smart framing from very smart people! Illustrates what emissions reductions in the next decades can save 🌊
NEW – Rapid emissions cuts would avoid 64cm of ‘locked in’ sea level rise by 2300 | @ayeshatandon.carbonbrief.org w/ comment from Dr Catia Domingues
Read here: buff.ly/Ny3nIaT
Read here: buff.ly/Ny3nIaT
October 24, 2025 at 11:49 AM
Smart framing from very smart people! Illustrates what emissions reductions in the next decades can save 🌊
Kkkkk yesyesyes. Just another day reading the news in 2025.
October 17, 2025 at 10:04 AM
Kkkkk yesyesyes. Just another day reading the news in 2025.
Reposted by Holly Simpkin
Read his speech in full here: www.pik-potsdam.de/en/news/late...
Johan Rockström addresses heads of state during United Nations General Assembly: “failure is not inevitable, it is a choice”
24.09.2025 – Johan Rockström, Director of the Potsdam Institute for Climate Impact Research (PIK) addressed heads of state, ministers and other dignitaries in New York today.
www.pik-potsdam.de
September 24, 2025 at 6:45 PM
Read his speech in full here: www.pik-potsdam.de/en/news/late...
Reposted by Holly Simpkin
LIVE: the UN Secretary General's Climate Summit is kicking off in New York with remarks from climate scientists to heads of state, ministers and representatives. First up - PIK Director Johan Rockström.
🔗Livestream: webtv.un.org/en/asset/k12...
🔗Livestream: webtv.un.org/en/asset/k12...
Climate Summit 2025
To accelerate momentum, the UN Secretary-General will host a Special High-Level Event on Climate Action on 24 September 2025, as a platform for leaders to present their new Nationally Determined Contr...
webtv.un.org
September 24, 2025 at 5:59 PM
LIVE: the UN Secretary General's Climate Summit is kicking off in New York with remarks from climate scientists to heads of state, ministers and representatives. First up - PIK Director Johan Rockström.
🔗Livestream: webtv.un.org/en/asset/k12...
🔗Livestream: webtv.un.org/en/asset/k12...
Reposted by Holly Simpkin
New from us: India's power sector emissions fell for only the 2nd time in half a century, due to both economic and weather factors and record clean energy growth. The current drop is unlikely to be sustained but clean energy projects in the pipeline can peak power sector emissions well before 2030.
🇮🇳 📰 NEW | Analysis: #India’s power-sector #CO2 falls for only second time in half a century
The sector's CO2 could peak before 2030
Anubha Aggarwal
@laurimyllyvirta.bsky.social w/
@carbonbrief.org
carbonbrief.org/analysis-indias-power-sector-co2-falls-for-only-second-time-in-half-a-century/
The sector's CO2 could peak before 2030
Anubha Aggarwal
@laurimyllyvirta.bsky.social w/
@carbonbrief.org
carbonbrief.org/analysis-indias-power-sector-co2-falls-for-only-second-time-in-half-a-century/
September 18, 2025 at 5:16 AM
New from us: India's power sector emissions fell for only the 2nd time in half a century, due to both economic and weather factors and record clean energy growth. The current drop is unlikely to be sustained but clean energy projects in the pipeline can peak power sector emissions well before 2030.
Reposted by Holly Simpkin
🚨 Important paper in Nature: "Systematic attribution of heatwaves to the emissions of carbon majors".
www.nature.com/articles/s41...
www.nature.com/articles/s41...
Systematic attribution of heatwaves to the emissions of carbon majors - Nature
Climate change made 213 historical heatwaves reported over 2000–2023 more likely and more intense, to which each of the 180 carbon majors (fossil fuel and cement producers) substantially contributed.
www.nature.com
September 10, 2025 at 5:41 PM
🚨 Important paper in Nature: "Systematic attribution of heatwaves to the emissions of carbon majors".
www.nature.com/articles/s41...
www.nature.com/articles/s41...
Reposted by Holly Simpkin
New data set for Atmospheric Rivers: PIKART!💨
These narrow bands of moisture in the lower atmosphere act as conveyer belts of water vapour and typically carry more than twice the flow of the Amazon River.
www.pik-potsdam.de/en/news/late...
These narrow bands of moisture in the lower atmosphere act as conveyer belts of water vapour and typically carry more than twice the flow of the Amazon River.
www.pik-potsdam.de/en/news/late...
PIK develops a new global, high resolution data set of atmospheric rivers
04.08.2025– Researchers from the Potsdam Institute for Climate Impact Research (PIK) have developed a new data set of the Earth’s atmospheric rivers – PIK Atmospheric River Trajectories (PIKART) – imp...
www.pik-potsdam.de
August 5, 2025 at 7:41 AM
New data set for Atmospheric Rivers: PIKART!💨
These narrow bands of moisture in the lower atmosphere act as conveyer belts of water vapour and typically carry more than twice the flow of the Amazon River.
www.pik-potsdam.de/en/news/late...
These narrow bands of moisture in the lower atmosphere act as conveyer belts of water vapour and typically carry more than twice the flow of the Amazon River.
www.pik-potsdam.de/en/news/late...
Report from Allianz Research shows a day with temperatures above 32 degrees Celsius in 2025 has a comparable effect on GDP as half a day of strikes.
Recent heatwaves across Europe could slow economic growth in Europe by half a percentage point.
www.reuters.com/sustainabili...
Recent heatwaves across Europe could slow economic growth in Europe by half a percentage point.
www.reuters.com/sustainabili...
Heatwaves may cut GDP by 0.5 pct points in Europe, Allianz says
Allianz Research compared a day with temperatures above 32 degrees Celsius to half a day of strikes.
www.reuters.com
July 3, 2025 at 8:00 AM
Report from Allianz Research shows a day with temperatures above 32 degrees Celsius in 2025 has a comparable effect on GDP as half a day of strikes.
Recent heatwaves across Europe could slow economic growth in Europe by half a percentage point.
www.reuters.com/sustainabili...
Recent heatwaves across Europe could slow economic growth in Europe by half a percentage point.
www.reuters.com/sustainabili...
Reposted by Holly Simpkin
🥵The weather station at PIK in Potsdam has recorded the driest first six months of a year since measurements began in 1893 – with only 146.8mm of rainfall. The long-term average for this location in the first half of the year is around 300mm.
www.pik-potsdam.de/en/news/late...
www.pik-potsdam.de/en/news/late...
July 1, 2025 at 9:16 AM
🥵The weather station at PIK in Potsdam has recorded the driest first six months of a year since measurements began in 1893 – with only 146.8mm of rainfall. The long-term average for this location in the first half of the year is around 300mm.
www.pik-potsdam.de/en/news/late...
www.pik-potsdam.de/en/news/late...
Reposted by Holly Simpkin
⚠️Global warming caused by humans is advancing at 0.27°C per decade – the highest rate since records began.
This is one of the indicators updated every year by over 60 international scientists in the annual Indicators of Global Climate Change report – published today. doi.org/10.5194/essd... /1
This is one of the indicators updated every year by over 60 international scientists in the annual Indicators of Global Climate Change report – published today. doi.org/10.5194/essd... /1
June 19, 2025 at 8:23 AM
⚠️Global warming caused by humans is advancing at 0.27°C per decade – the highest rate since records began.
This is one of the indicators updated every year by over 60 international scientists in the annual Indicators of Global Climate Change report – published today. doi.org/10.5194/essd... /1
This is one of the indicators updated every year by over 60 international scientists in the annual Indicators of Global Climate Change report – published today. doi.org/10.5194/essd... /1
Peaking peaking peaking @clairefyson.bsky.social @neilgrant.bsky.social @carlschleussner.bsky.social @joerirogelj.bsky.social
NEW – Analysis: Clean energy just put China’s CO2 emissions into reverse for first time | @laurimyllyvirta.bsky.social
Read here: buff.ly/6eAcjRU
Read here: buff.ly/6eAcjRU
May 15, 2025 at 7:27 AM
Peaking peaking peaking @clairefyson.bsky.social @neilgrant.bsky.social @carlschleussner.bsky.social @joerirogelj.bsky.social
Reposted by Holly Simpkin
Comment: Oil, gas and coal cause three-quarters of global emissions. Why are they nowhere to be seen on the Belém climate summit’s agenda?
www.climatechangenews.com/2025/05/08/c...
www.climatechangenews.com/2025/05/08/c...
COP30 must heed the elephant in the room: fossil fuels
Oil, gas and coal cause three-quarters of global emissions. Why are they nowhere to be seen on the Belém climate summit's agenda?
www.climatechangenews.com
May 8, 2025 at 5:04 PM
Comment: Oil, gas and coal cause three-quarters of global emissions. Why are they nowhere to be seen on the Belém climate summit’s agenda?
www.climatechangenews.com/2025/05/08/c...
www.climatechangenews.com/2025/05/08/c...
On holiday but 🔌 for this episode of Volts feat. one of my smartest friends Antoine. It’s a great convo on trade and climate and extra interesting to listen to from China!
Today on Volts: a timely discussion of global trade & clean energy! Who's trading with who, the effort to diversify supply chains, how all those "onshoring" efforts are going, the effects of tariffs ... and more, with Antoine Vagneur-Jones of #BloombergNEF.
What's up with clean-energy supply chains and global trade?
How trade barriers and tariff threats are creating investment uncertainty in global clean energy markets.
www.volts.wtf
April 13, 2025 at 4:45 AM
On holiday but 🔌 for this episode of Volts feat. one of my smartest friends Antoine. It’s a great convo on trade and climate and extra interesting to listen to from China!
Next time you read that renewables are going to encroach on land use for farming, just be safe in the knowledge that our basic golfing needs are taken care of.
Countries across the world use more land for golf courses than wind or solar energy - IOPscienceSearch
Countries across the world use more land for golf courses than wind or solar energy, Weinand, Jann Michael, Pelser, Tristan, Kleinebrahm, Max, Stolten, Detlef
iopscience.iop.org
February 27, 2025 at 1:27 PM
Next time you read that renewables are going to encroach on land use for farming, just be safe in the knowledge that our basic golfing needs are taken care of.
Reposted by Holly Simpkin
🕵️ Are you a news hound with a knack for storytelling and a sharp eye on the global climate agenda?
We’re #hiring a Senior Climate Communications Manager to translate complex science and policy analysis into accessible, engaging content.
Apply here 👉: climate.jobs.personio.com/job/1975939?...
We’re #hiring a Senior Climate Communications Manager to translate complex science and policy analysis into accessible, engaging content.
Apply here 👉: climate.jobs.personio.com/job/1975939?...
February 20, 2025 at 2:06 PM
🕵️ Are you a news hound with a knack for storytelling and a sharp eye on the global climate agenda?
We’re #hiring a Senior Climate Communications Manager to translate complex science and policy analysis into accessible, engaging content.
Apply here 👉: climate.jobs.personio.com/job/1975939?...
We’re #hiring a Senior Climate Communications Manager to translate complex science and policy analysis into accessible, engaging content.
Apply here 👉: climate.jobs.personio.com/job/1975939?...
Reposted by Holly Simpkin
With 2024 coming in at or above #1o5C, and a run of 12 months to June 2024 where monthly warming was at or above 1.5°C, questions are coming about whether or not the longer-term 1.5°C limit set out in the Paris Agreement has been reached.
2 papers out today look at these Qs. 🧵👇
2 papers out today look at these Qs. 🧵👇
Reaching the Paris Agreement’s 1.5°C limit: are we there yet?
Two new papers published in Nature Climate Change today ask whether the recent global temperatures at or exceeding 1.5° warming above preindustrial mean the Paris Agreement’s 1.5°C limit has been reac...
climateanalytics.org
February 10, 2025 at 4:25 PM
With 2024 coming in at or above #1o5C, and a run of 12 months to June 2024 where monthly warming was at or above 1.5°C, questions are coming about whether or not the longer-term 1.5°C limit set out in the Paris Agreement has been reached.
2 papers out today look at these Qs. 🧵👇
2 papers out today look at these Qs. 🧵👇
Reposted by Holly Simpkin
A reminder that the only way for Europe to reduce exposure to volatile fossil gas prices is to significantly reduce gas consumption.
February 10, 2025 at 3:20 PM
A reminder that the only way for Europe to reduce exposure to volatile fossil gas prices is to significantly reduce gas consumption.
Reposted by Holly Simpkin
Have you ever wondered if the global leadership on climate would be less depressing if we had more Luisas and fewer Elons? With gender equality backsliding everywhere, it’s super important to stress its role in addressing the climate crisis. A 🧵 on our new paper on gender equality & scenarios:
February 4, 2025 at 10:10 AM
Have you ever wondered if the global leadership on climate would be less depressing if we had more Luisas and fewer Elons? With gender equality backsliding everywhere, it’s super important to stress its role in addressing the climate crisis. A 🧵 on our new paper on gender equality & scenarios:
The gall of the NZ govt to announce a 2035 NDC that is *a 1% difference* from its 2030 target. Have screenshotted what seems to be a delusional inclusion from the announcement's webpage. What an absolute pisstake.
Embarrassed to be a Kiwi today.
environment.govt.nz/news/second-...
Embarrassed to be a Kiwi today.
environment.govt.nz/news/second-...
January 30, 2025 at 11:43 AM
The gall of the NZ govt to announce a 2035 NDC that is *a 1% difference* from its 2030 target. Have screenshotted what seems to be a delusional inclusion from the announcement's webpage. What an absolute pisstake.
Embarrassed to be a Kiwi today.
environment.govt.nz/news/second-...
Embarrassed to be a Kiwi today.
environment.govt.nz/news/second-...
Shrek - Ogres are like Onions (Blu-Ray 1080p) English [scene]
YouTube video by M0vie
youtu.be
November 14, 2024 at 4:44 PM
Reposted by Holly Simpkin
The Global Carbon Budget out today predicts emissions will rise 0.8% this year, meaning we have not yet peaked 🏔️❌
While our expectations for renewables were actually surpassed, this wasn't enough to bring emissions down.
We delve into why 🧵⤵️
climateanalytics.org/comment/new-...
While our expectations for renewables were actually surpassed, this wasn't enough to bring emissions down.
We delve into why 🧵⤵️
climateanalytics.org/comment/new-...
New gas and oil has prevented CO2 global emissions from peaking
The Global Carbon Budget's first estimate for 2024's CO2 emissions suggests emissions rose by 0.8% this year. We delve into why we haven't peaked emissions yet.
climateanalytics.org
November 13, 2024 at 9:33 AM
The Global Carbon Budget out today predicts emissions will rise 0.8% this year, meaning we have not yet peaked 🏔️❌
While our expectations for renewables were actually surpassed, this wasn't enough to bring emissions down.
We delve into why 🧵⤵️
climateanalytics.org/comment/new-...
While our expectations for renewables were actually surpassed, this wasn't enough to bring emissions down.
We delve into why 🧵⤵️
climateanalytics.org/comment/new-...
Reposted by Holly Simpkin
Guest post: What 1.5C overshoot would mean for climate impacts and adaptation | Dr Carl-Friedrich Schleussner, Prof Rachel Warren, Dr Fabien Maussion, Dr Niels Souverijns and Dr Quentin Lejeune
Read here: https://buff.ly/3Cjl0Oe
Read here: https://buff.ly/3Cjl0Oe
November 11, 2024 at 4:53 PM
Guest post: What 1.5C overshoot would mean for climate impacts and adaptation | Dr Carl-Friedrich Schleussner, Prof Rachel Warren, Dr Fabien Maussion, Dr Niels Souverijns and Dr Quentin Lejeune
Read here: https://buff.ly/3Cjl0Oe
Read here: https://buff.ly/3Cjl0Oe