Grantham Institute - Climate Change and the Environment
@granthamicl.bsky.social
Our mission is to lead on world-class research, policy, training and innovation that supports effective action on climate change.
💡 Using pioneering methods, the team found that in Florida alone:
▪️ 44% ($8.5bn) of Helene’s damages
▪️ 45% ($23bn) of Milton’s
…can be attributed directly to climate change.
▪️ 44% ($8.5bn) of Helene’s damages
▪️ 45% ($23bn) of Milton’s
…can be attributed directly to climate change.
November 10, 2025 at 3:03 PM
💡 Using pioneering methods, the team found that in Florida alone:
▪️ 44% ($8.5bn) of Helene’s damages
▪️ 45% ($23bn) of Milton’s
…can be attributed directly to climate change.
▪️ 44% ($8.5bn) of Helene’s damages
▪️ 45% ($23bn) of Milton’s
…can be attributed directly to climate change.
What are the true costs of climate disasters?
Following hurricanes Helene and Milton, which in late 2024 tore through the southeastern US, Imperial’s Dr @etheokritoff.bsky.social and researchers answered this question 🧵
ow.ly/rgcv50WcaE3
#COP30
Following hurricanes Helene and Milton, which in late 2024 tore through the southeastern US, Imperial’s Dr @etheokritoff.bsky.social and researchers answered this question 🧵
ow.ly/rgcv50WcaE3
#COP30
November 10, 2025 at 3:03 PM
What are the true costs of climate disasters?
Following hurricanes Helene and Milton, which in late 2024 tore through the southeastern US, Imperial’s Dr @etheokritoff.bsky.social and researchers answered this question 🧵
ow.ly/rgcv50WcaE3
#COP30
Following hurricanes Helene and Milton, which in late 2024 tore through the southeastern US, Imperial’s Dr @etheokritoff.bsky.social and researchers answered this question 🧵
ow.ly/rgcv50WcaE3
#COP30
📈Human-induced climate change increased wind speeds & rainfall from Hurricane Melissa, according to a new rapid analysis by @wwattribution.bsky.social at @ic-cep.bsky.social🧵
Read the study: ow.ly/zEqA50Xog2C
Read the study: ow.ly/zEqA50Xog2C
November 7, 2025 at 10:30 AM
📈Human-induced climate change increased wind speeds & rainfall from Hurricane Melissa, according to a new rapid analysis by @wwattribution.bsky.social at @ic-cep.bsky.social🧵
Read the study: ow.ly/zEqA50Xog2C
Read the study: ow.ly/zEqA50Xog2C
Professor @joerirogelj.bsky.social of @ic-cep.bsky.social said:
“The Paris Agreement sets a clear expectation for high ambition, but there is currently no clear way to measure and assess that ambition.
“We have developed a framework to fill that gap [...] and hold governments accountable.”
“The Paris Agreement sets a clear expectation for high ambition, but there is currently no clear way to measure and assess that ambition.
“We have developed a framework to fill that gap [...] and hold governments accountable.”
November 6, 2025 at 5:16 PM
Professor @joerirogelj.bsky.social of @ic-cep.bsky.social said:
“The Paris Agreement sets a clear expectation for high ambition, but there is currently no clear way to measure and assess that ambition.
“We have developed a framework to fill that gap [...] and hold governments accountable.”
“The Paris Agreement sets a clear expectation for high ambition, but there is currently no clear way to measure and assess that ambition.
“We have developed a framework to fill that gap [...] and hold governments accountable.”
SUVs also increase air pollution.
In Europe’s urban areas, air pollution from non-exhaust emissions (ie, tyres, brakes, and road wear) now dominates particulate matter pollution and may be important contributors to chronic illnesses and premature mortality.
In Europe’s urban areas, air pollution from non-exhaust emissions (ie, tyres, brakes, and road wear) now dominates particulate matter pollution and may be important contributors to chronic illnesses and premature mortality.
November 6, 2025 at 4:00 PM
SUVs also increase air pollution.
In Europe’s urban areas, air pollution from non-exhaust emissions (ie, tyres, brakes, and road wear) now dominates particulate matter pollution and may be important contributors to chronic illnesses and premature mortality.
In Europe’s urban areas, air pollution from non-exhaust emissions (ie, tyres, brakes, and road wear) now dominates particulate matter pollution and may be important contributors to chronic illnesses and premature mortality.
Carspreading is also an obstacle to achieving climate and air quality goals.
Counting cars and SUVs together, around 80% of all new sales run exclusively, or partly, on fossil fuels, while 20% are all electric.
Counting cars and SUVs together, around 80% of all new sales run exclusively, or partly, on fossil fuels, while 20% are all electric.
November 6, 2025 at 4:00 PM
Carspreading is also an obstacle to achieving climate and air quality goals.
Counting cars and SUVs together, around 80% of all new sales run exclusively, or partly, on fossil fuels, while 20% are all electric.
Counting cars and SUVs together, around 80% of all new sales run exclusively, or partly, on fossil fuels, while 20% are all electric.
Those who walk or cycle face a cohort of new cars each year that are becoming wider and taller (and more dangerous).
These vehicles reduce the space for cyclists to move safely beside them and make it harder to achieve an increase in active travel and the public health benefits it entails.
These vehicles reduce the space for cyclists to move safely beside them and make it harder to achieve an increase in active travel and the public health benefits it entails.
November 6, 2025 at 4:00 PM
Those who walk or cycle face a cohort of new cars each year that are becoming wider and taller (and more dangerous).
These vehicles reduce the space for cyclists to move safely beside them and make it harder to achieve an increase in active travel and the public health benefits it entails.
These vehicles reduce the space for cyclists to move safely beside them and make it harder to achieve an increase in active travel and the public health benefits it entails.
In the UK, SUVs accounted for 63% of new sales in 2024.
The proliferation of SUVs is one aspect of “carspreading,” whereby cars are becoming steadily larger over time and with this comes potential harms to health 🧵
www.bmj.com/content/391/...
The proliferation of SUVs is one aspect of “carspreading,” whereby cars are becoming steadily larger over time and with this comes potential harms to health 🧵
www.bmj.com/content/391/...
November 6, 2025 at 4:00 PM
In the UK, SUVs accounted for 63% of new sales in 2024.
The proliferation of SUVs is one aspect of “carspreading,” whereby cars are becoming steadily larger over time and with this comes potential harms to health 🧵
www.bmj.com/content/391/...
The proliferation of SUVs is one aspect of “carspreading,” whereby cars are becoming steadily larger over time and with this comes potential harms to health 🧵
www.bmj.com/content/391/...
3. Climate pledges should account for how different climate actions impact each other and be possible in the near future.
November 6, 2025 at 2:07 PM
3. Climate pledges should account for how different climate actions impact each other and be possible in the near future.
2. Internationally, climate pledges should support the achievement of the Paris Agreement temperature goals in an equitable way.
November 6, 2025 at 2:07 PM
2. Internationally, climate pledges should support the achievement of the Paris Agreement temperature goals in an equitable way.
The paper outlines three key pillars for assessing countries' pledges:
1. Countries’ climate pledges should be based on a fair assessment of their national emission reduction options.
1. Countries’ climate pledges should be based on a fair assessment of their national emission reduction options.
November 6, 2025 at 2:07 PM
The paper outlines three key pillars for assessing countries' pledges:
1. Countries’ climate pledges should be based on a fair assessment of their national emission reduction options.
1. Countries’ climate pledges should be based on a fair assessment of their national emission reduction options.
📈COP delivers stock market boost for ‘green’ companies but renewables unaffected, Imperial College London study shows 🧵
Read it here: ow.ly/o6xY50XnEuH
Read it here: ow.ly/o6xY50XnEuH
November 6, 2025 at 11:01 AM
📈COP delivers stock market boost for ‘green’ companies but renewables unaffected, Imperial College London study shows 🧵
Read it here: ow.ly/o6xY50XnEuH
Read it here: ow.ly/o6xY50XnEuH
Grantham Institute Director of Research Professor @joerirogelj.bsky.social was lead author on Chapter 4 of the report, which also includes contributions from Imperial’s Dr @robinlamboll.bsky.social.
Read the report in full here: ow.ly/V7Zy50XmtCz
Read the report in full here: ow.ly/V7Zy50XmtCz
November 4, 2025 at 3:01 PM
Grantham Institute Director of Research Professor @joerirogelj.bsky.social was lead author on Chapter 4 of the report, which also includes contributions from Imperial’s Dr @robinlamboll.bsky.social.
Read the report in full here: ow.ly/V7Zy50XmtCz
Read the report in full here: ow.ly/V7Zy50XmtCz
The scale of emissions cuts required in a short amount of time means that an overshoot of 1.5°C will now happen, very likely in the next decade.
The authors say that the pursuit of efforts to limit warming to 1.5°C remains critical in order to minimise the impacts of overshoot. [2/3]
The authors say that the pursuit of efforts to limit warming to 1.5°C remains critical in order to minimise the impacts of overshoot. [2/3]
November 4, 2025 at 3:01 PM
The scale of emissions cuts required in a short amount of time means that an overshoot of 1.5°C will now happen, very likely in the next decade.
The authors say that the pursuit of efforts to limit warming to 1.5°C remains critical in order to minimise the impacts of overshoot. [2/3]
The authors say that the pursuit of efforts to limit warming to 1.5°C remains critical in order to minimise the impacts of overshoot. [2/3]
NEW: The latest climate pledges under the Paris Agreement have driven only a slight fall in predicted global temperature rise over the course of this century.
The UN Emissions Gap Report finds that implementing current policies would lead to up to 2.8°C of warming, down from 3.1°C. 🧵
The UN Emissions Gap Report finds that implementing current policies would lead to up to 2.8°C of warming, down from 3.1°C. 🧵
November 4, 2025 at 3:01 PM
NEW: The latest climate pledges under the Paris Agreement have driven only a slight fall in predicted global temperature rise over the course of this century.
The UN Emissions Gap Report finds that implementing current policies would lead to up to 2.8°C of warming, down from 3.1°C. 🧵
The UN Emissions Gap Report finds that implementing current policies would lead to up to 2.8°C of warming, down from 3.1°C. 🧵
Imperial College London and Earthwatch Europe are calling on the UK government to implement stricter regulations for environmental risk assessment of pet medications like imidacloprid and restrict blanket preventative use of flea and tick treatments in the UK.
November 4, 2025 at 12:23 PM
Imperial College London and Earthwatch Europe are calling on the UK government to implement stricter regulations for environmental risk assessment of pet medications like imidacloprid and restrict blanket preventative use of flea and tick treatments in the UK.
When the data collection is complete, it will be the largest dataset of its kind, with over 200,000 measurements from across the entire United Kingdom.
This includes highlighting areas with the worst (and best) contamination.
This includes highlighting areas with the worst (and best) contamination.
November 4, 2025 at 12:23 PM
When the data collection is complete, it will be the largest dataset of its kind, with over 200,000 measurements from across the entire United Kingdom.
This includes highlighting areas with the worst (and best) contamination.
This includes highlighting areas with the worst (and best) contamination.
The research was led by Imperial's Professor Leon Barron with Dr @helenarappwright.bsky.social and Earthwatch Europe's Dr Sasha Woods, Laura Bannatyne, Steven Loiselle and Kevin Simmonds.
Earthwatch also enrolled 5000 citizen scientists with over a thousand sampling kits to test the UK’s waterways.
Earthwatch also enrolled 5000 citizen scientists with over a thousand sampling kits to test the UK’s waterways.
November 4, 2025 at 12:23 PM
The research was led by Imperial's Professor Leon Barron with Dr @helenarappwright.bsky.social and Earthwatch Europe's Dr Sasha Woods, Laura Bannatyne, Steven Loiselle and Kevin Simmonds.
Earthwatch also enrolled 5000 citizen scientists with over a thousand sampling kits to test the UK’s waterways.
Earthwatch also enrolled 5000 citizen scientists with over a thousand sampling kits to test the UK’s waterways.
The insecticide imidacloprid, banned for agricultural use but still applied in spot-on flea and tick treatments for pets, posed the highest risk to aquatic invertebrates, according to the scientists.
November 4, 2025 at 12:23 PM
The insecticide imidacloprid, banned for agricultural use but still applied in spot-on flea and tick treatments for pets, posed the highest risk to aquatic invertebrates, according to the scientists.
As @undaunted-hq.bsky.social's Climate Solutions Catalyst seeks to assemble its second cohort, @christopherjwaite.bsky.social and Nicole Alhadeff from the team outline why they are turning their powerful search tool towards climate adaptation and resilience.
ow.ly/j9bF50XlEv
ow.ly/j9bF50XlEv
November 3, 2025 at 10:40 AM
As @undaunted-hq.bsky.social's Climate Solutions Catalyst seeks to assemble its second cohort, @christopherjwaite.bsky.social and Nicole Alhadeff from the team outline why they are turning their powerful search tool towards climate adaptation and resilience.
ow.ly/j9bF50XlEv
ow.ly/j9bF50XlEv
COP30 in Brazil will be a critical test of global leadership and must be a moment of pushback against the wrecking tactics we’ve seen on climate, said Dr Gro Harlem Brundtland of @theelders.bsky.social at the 2025 Grantham Institute Annual Lecture this week 🧵
October 31, 2025 at 3:30 PM
COP30 in Brazil will be a critical test of global leadership and must be a moment of pushback against the wrecking tactics we’ve seen on climate, said Dr Gro Harlem Brundtland of @theelders.bsky.social at the 2025 Grantham Institute Annual Lecture this week 🧵
🤝Integrating mental health support into climate change strategies offers an opportunity to build public resilience.
October 31, 2025 at 10:49 AM
🤝Integrating mental health support into climate change strategies offers an opportunity to build public resilience.
😞"Eco-emotions" stem from prolonged exposure to climate change-related issues, including grief and guilt over environmental damage and anxiety about future climate-related hazards.
Without support, these experiences can worsen mental health and wellbeing.
Without support, these experiences can worsen mental health and wellbeing.
October 31, 2025 at 10:49 AM
😞"Eco-emotions" stem from prolonged exposure to climate change-related issues, including grief and guilt over environmental damage and anxiety about future climate-related hazards.
Without support, these experiences can worsen mental health and wellbeing.
Without support, these experiences can worsen mental health and wellbeing.
⚠️ Direct impacts include anxiety, stress, and trauma from floods and droughts, and increased risks of suicide and symptoms of mental health disorders from heat and air pollution.
October 31, 2025 at 10:49 AM
⚠️ Direct impacts include anxiety, stress, and trauma from floods and droughts, and increased risks of suicide and symptoms of mental health disorders from heat and air pollution.
🌡️ Climate change-related increases in temperature and extreme weather pose current and future risks to public mental health in the UK.
🧠Vulnerable populations face heightened mental health risks.
🧠Vulnerable populations face heightened mental health risks.
October 31, 2025 at 10:49 AM
🌡️ Climate change-related increases in temperature and extreme weather pose current and future risks to public mental health in the UK.
🧠Vulnerable populations face heightened mental health risks.
🧠Vulnerable populations face heightened mental health risks.