Alfie Mayhew
@amayhew.bsky.social
Postdoctoral researcher studying the impacts of the atmospheric chemistry of BVOCs on air quality and climate 🌍
Reposted by Alfie Mayhew
At last! A coherent plan for dealing with the perversity of fossil gas largely setting electricity prices, even though it supplies only 1/4 of our power.
Stepping into the market like this offends the government's deepest instincts. But it needs to happen.
www.theguardian.com/environment/...
Stepping into the market like this offends the government's deepest instincts. But it needs to happen.
www.theguardian.com/environment/...
Households could save £200 on energy bills in plan to break link between gas and electricity prices, says thinktank
Government plan to de-link gas and electricity prices aims to reduce bills for consumers after global surge in prices
www.theguardian.com
June 10, 2026 at 10:45 AM
At last! A coherent plan for dealing with the perversity of fossil gas largely setting electricity prices, even though it supplies only 1/4 of our power.
Stepping into the market like this offends the government's deepest instincts. But it needs to happen.
www.theguardian.com/environment/...
Stepping into the market like this offends the government's deepest instincts. But it needs to happen.
www.theguardian.com/environment/...
Reposted by Alfie Mayhew
There's a terrific new article by @carbonbrief.org on the Atlantic Meridional Overturning Circulation with some great animations. Strongly recommended. I've been reading it ahead of giving a lecture on the risks of climate change tomorrow. interactive.carbonbrief.org/amoc-explain...
AMOC: Is global warming tipping key Atlantic ocean currents towards ‘collapse’?
The AMOC is under threat from human-caused climate change, as warming seas, melting ice and increased rainfall upset the temperature and salt balance of the North Atlantic.
interactive.carbonbrief.org
April 28, 2026 at 9:37 AM
There's a terrific new article by @carbonbrief.org on the Atlantic Meridional Overturning Circulation with some great animations. Strongly recommended. I've been reading it ahead of giving a lecture on the risks of climate change tomorrow. interactive.carbonbrief.org/amoc-explain...
Reposted by Alfie Mayhew
I'm a data scientist @ourworldindata.org and I need help from a botanist or someone local to Kyoto, Japan! 🌸
We present one of the world’s longest climate records: 1,200 years of peak cherry blossom dates in Kyoto.
The researcher who maintained it, Prof. Yasuyuki Aono, sadly passed away last year.
We present one of the world’s longest climate records: 1,200 years of peak cherry blossom dates in Kyoto.
The researcher who maintained it, Prof. Yasuyuki Aono, sadly passed away last year.
April 10, 2026 at 9:52 AM
I'm a data scientist @ourworldindata.org and I need help from a botanist or someone local to Kyoto, Japan! 🌸
We present one of the world’s longest climate records: 1,200 years of peak cherry blossom dates in Kyoto.
The researcher who maintained it, Prof. Yasuyuki Aono, sadly passed away last year.
We present one of the world’s longest climate records: 1,200 years of peak cherry blossom dates in Kyoto.
The researcher who maintained it, Prof. Yasuyuki Aono, sadly passed away last year.
Reposted by Alfie Mayhew
Trump calls environmentalists “terrorists.” Yet he’s responsible for destroying more oil & gas infrastructure, and more fossil-fuel demand, than the most optimistic ecoterrorist could in their wildest dreams. He’s helping the transition he abhors
Gift link:
www.bloomberg.com/opinion/arti...
Gift link:
www.bloomberg.com/opinion/arti...
The Ecoterrorism Is Coming From Inside the White House
President Donald Trump calls environmentalists “terrorists.” Yet he is responsible for destroying more oil and gas infrastructure, and possibly more fossil-fuel demand, than the most optimistic ecoter...
www.bloomberg.com
March 31, 2026 at 12:57 PM
Trump calls environmentalists “terrorists.” Yet he’s responsible for destroying more oil & gas infrastructure, and more fossil-fuel demand, than the most optimistic ecoterrorist could in their wildest dreams. He’s helping the transition he abhors
Gift link:
www.bloomberg.com/opinion/arti...
Gift link:
www.bloomberg.com/opinion/arti...
Reposted by Alfie Mayhew
Saudi Arabia, Russia and others yet again blocking progress on climate science ...
> IPCC: ‘Frustrating and disappointing’ meeting leaves AR7 timeline in deadlock
#climatecrisis
@carbonbrief.org
www.carbonbrief.org/ipcc-frustra...
> IPCC: ‘Frustrating and disappointing’ meeting leaves AR7 timeline in deadlock
#climatecrisis
@carbonbrief.org
www.carbonbrief.org/ipcc-frustra...
IPCC: ‘Frustrating and disappointing’ meeting leaves AR7 timeline in deadlock - Carbon Brief
Governments are still at loggerheads over the timeline for publishing the Intergovernmental Panel on Climate...
www.carbonbrief.org
April 2, 2026 at 8:39 AM
Saudi Arabia, Russia and others yet again blocking progress on climate science ...
> IPCC: ‘Frustrating and disappointing’ meeting leaves AR7 timeline in deadlock
#climatecrisis
@carbonbrief.org
www.carbonbrief.org/ipcc-frustra...
> IPCC: ‘Frustrating and disappointing’ meeting leaves AR7 timeline in deadlock
#climatecrisis
@carbonbrief.org
www.carbonbrief.org/ipcc-frustra...
Reposted by Alfie Mayhew
Today we have published new analysis building on the Committee's advice on the UK’s Seventh Carbon Budget.
Our conclusions about the cost of decarbonising the UK and impacts on energy security were tested against different scenarios ⬇️
Read the full report here: www.theccc.org.uk/publication/...
Our conclusions about the cost of decarbonising the UK and impacts on energy security were tested against different scenarios ⬇️
Read the full report here: www.theccc.org.uk/publication/...
March 11, 2026 at 11:50 AM
Today we have published new analysis building on the Committee's advice on the UK’s Seventh Carbon Budget.
Our conclusions about the cost of decarbonising the UK and impacts on energy security were tested against different scenarios ⬇️
Read the full report here: www.theccc.org.uk/publication/...
Our conclusions about the cost of decarbonising the UK and impacts on energy security were tested against different scenarios ⬇️
Read the full report here: www.theccc.org.uk/publication/...
Reposted by Alfie Mayhew
Fascinating to see how all the Tories now defecting to Reform are now going to scrub their brains re: climate change.
In his maiden speech in Lords, Malcolm Offord - now Reform leader in Scotland - said:
"We have the capital, the brains and the political will to meet the climate challenge"
In his maiden speech in Lords, Malcolm Offord - now Reform leader in Scotland - said:
"We have the capital, the brains and the political will to meet the climate challenge"
January 15, 2026 at 11:31 AM
Fascinating to see how all the Tories now defecting to Reform are now going to scrub their brains re: climate change.
In his maiden speech in Lords, Malcolm Offord - now Reform leader in Scotland - said:
"We have the capital, the brains and the political will to meet the climate challenge"
In his maiden speech in Lords, Malcolm Offord - now Reform leader in Scotland - said:
"We have the capital, the brains and the political will to meet the climate challenge"
Reposted by Alfie Mayhew
The unique location of Xizang University in Lhasa, Tibet, China (seen here from afar) allowed researchers to disentangle the health effects of ozone-derived carbonyls from ozone itself. cen.acs.org/environment/...
#chemsky 🧪
#chemsky 🧪
Ozone-derived carbonyls indoors could pose a risk to heart health
High concentrations of carbonyls are produced when indoor ozone reacts with skin oils. Researchers correlated the molecules with raised blood cell indices in people living on the Tibetan plateau
cen.acs.org
January 13, 2026 at 12:31 PM
The unique location of Xizang University in Lhasa, Tibet, China (seen here from afar) allowed researchers to disentangle the health effects of ozone-derived carbonyls from ozone itself. cen.acs.org/environment/...
#chemsky 🧪
#chemsky 🧪
Reposted by Alfie Mayhew
Meet the world’s largest heat pumps.
From the Rhine to cities in Denmark and Finland, vast heat pump systems are being built to heat thousands of homes. Using rivers, seawater and wastewater, the UK is also tapping heat from disused flooded mines for new heat networks. www.bbc.co.uk/news/article...
From the Rhine to cities in Denmark and Finland, vast heat pump systems are being built to heat thousands of homes. Using rivers, seawater and wastewater, the UK is also tapping heat from disused flooded mines for new heat networks. www.bbc.co.uk/news/article...
The giant heat pumps designed to warm whole districts
Across Europe huge heat pumps are being installed that can heat tens of thousands of homes.
www.bbc.co.uk
December 16, 2025 at 11:49 AM
Meet the world’s largest heat pumps.
From the Rhine to cities in Denmark and Finland, vast heat pump systems are being built to heat thousands of homes. Using rivers, seawater and wastewater, the UK is also tapping heat from disused flooded mines for new heat networks. www.bbc.co.uk/news/article...
From the Rhine to cities in Denmark and Finland, vast heat pump systems are being built to heat thousands of homes. Using rivers, seawater and wastewater, the UK is also tapping heat from disused flooded mines for new heat networks. www.bbc.co.uk/news/article...
Reposted by Alfie Mayhew
How could pollutants from aircraft change by burning sustainable aviation fuel? New research marks a major step forward in understanding how different aviation fuels change the impact of flying on air quality and the climate.
Read more:
ncas.ac.uk/scientists-p...
Read more:
ncas.ac.uk/scientists-p...
Scientists probe how sustainable aviation fuel affects air quality and climate - NCAS
Scientists study air pollutant emissions from an aircraft engine running on sustainable aviation fuel.
ncas.ac.uk
December 9, 2025 at 11:26 AM
How could pollutants from aircraft change by burning sustainable aviation fuel? New research marks a major step forward in understanding how different aviation fuels change the impact of flying on air quality and the climate.
Read more:
ncas.ac.uk/scientists-p...
Read more:
ncas.ac.uk/scientists-p...
Reposted by Alfie Mayhew
🚨 BREAKING: French President Emmanuel Macron warned the US could be about to “betray” Ukraine, according to a leaked transcript of a call between European leaders strategizing about how to protect Kyiv.
Read the story: politi.co/4iFVe7R
Read the story: politi.co/4iFVe7R
December 4, 2025 at 11:36 AM
🚨 BREAKING: French President Emmanuel Macron warned the US could be about to “betray” Ukraine, according to a leaked transcript of a call between European leaders strategizing about how to protect Kyiv.
Read the story: politi.co/4iFVe7R
Read the story: politi.co/4iFVe7R
Reposted by Alfie Mayhew
I wish more people were aware of this. Considering the scale of the threat, the media's near-silence is both remarkable and culpable.
www.theguardian.com/commentisfre...
www.theguardian.com/commentisfre...
Hello, foreign oligarchs and corporations! Please come and sue the UK for billions | George Monbiot
The case of a planned Cumbrian coalmine shows how governments around the world are being threatened by litigation in shadowy offshore courts, says Guardian columnist George Monbiot
www.theguardian.com
December 2, 2025 at 9:53 AM
I wish more people were aware of this. Considering the scale of the threat, the media's near-silence is both remarkable and culpable.
www.theguardian.com/commentisfre...
www.theguardian.com/commentisfre...
Reposted by Alfie Mayhew
COP30 in Belém was billed as 'the COP of implementation'; a moment to turn promises into action.
Priestley member and COP30 delegate Jyoti Narsude shares her thoughts on the reality.
climate.leeds.ac.uk/does-cop-imp...
Priestley member and COP30 delegate Jyoti Narsude shares her thoughts on the reality.
climate.leeds.ac.uk/does-cop-imp...
Reflecting on COP30: Did the ‘Implementation COP’ Deliver? - Priestley Centre for Climate Futures
COP30 in Belém was billed as the COP of implementation; a moment to turn promises into action. Expectations were huge, including stronger commitments on fossil fuel phase-out, forest protection, and c...
climate.leeds.ac.uk
December 2, 2025 at 11:33 AM
COP30 in Belém was billed as 'the COP of implementation'; a moment to turn promises into action.
Priestley member and COP30 delegate Jyoti Narsude shares her thoughts on the reality.
climate.leeds.ac.uk/does-cop-imp...
Priestley member and COP30 delegate Jyoti Narsude shares her thoughts on the reality.
climate.leeds.ac.uk/does-cop-imp...
Reposted by Alfie Mayhew
Excited to announce my group's latest paper by @amayhew.bsky.social on dimers/accretion products has been published in ACP. For the measurement folks: "Moving forward, it is clear that extensive measurements of accretion products are urgently needed." acp.copernicus.org/articles/25/...
The global importance of gas-phase peroxy radical accretion reactions for secondary organic aerosol loading
Abstract. Secondary organic aerosol (SOA) is an important class of atmospheric species with influences on air quality and climate. One understudied SOA formation pathway is gas-phase peroxy radical (R...
acp.copernicus.org
December 1, 2025 at 8:12 PM
Excited to announce my group's latest paper by @amayhew.bsky.social on dimers/accretion products has been published in ACP. For the measurement folks: "Moving forward, it is clear that extensive measurements of accretion products are urgently needed." acp.copernicus.org/articles/25/...
Reposted by Alfie Mayhew
New research, led by @york.ac.uk, found a significant proportion of ships breaching #airpollution limits.
"..some trigonometry and very skilled flying, we were able to intercept 130 ship plumes" - Dominika Pasternak
Piece by me.
www.theguardian.com/environment/...
"..some trigonometry and very skilled flying, we were able to intercept 130 ship plumes" - Dominika Pasternak
Piece by me.
www.theguardian.com/environment/...
Many ships found breaching pollution limits despite tighter controls
Researchers using aircraft to sample exhaust plumes say infringements persist – even in stricter zones
www.theguardian.com
November 28, 2025 at 8:58 AM
New research, led by @york.ac.uk, found a significant proportion of ships breaching #airpollution limits.
"..some trigonometry and very skilled flying, we were able to intercept 130 ship plumes" - Dominika Pasternak
Piece by me.
www.theguardian.com/environment/...
"..some trigonometry and very skilled flying, we were able to intercept 130 ship plumes" - Dominika Pasternak
Piece by me.
www.theguardian.com/environment/...
The work from my time at @utah.edu with @wilkescenter.bsky.social has just been published in ACP as a highlight paper.
RO2 accretion products could comprise a substantial fraction of PM2.5, and the chemical structure may be different than previously assumed! 🤔
doi.org/10.5194/acp-...
RO2 accretion products could comprise a substantial fraction of PM2.5, and the chemical structure may be different than previously assumed! 🤔
doi.org/10.5194/acp-...
The global importance of gas-phase peroxy radical accretion reactions for secondary organic aerosol loading
Abstract. Secondary organic aerosol (SOA) is an important class of atmospheric species with influences on air quality and climate. One understudied SOA formation pathway is gas-phase peroxy radical (R...
doi.org
November 28, 2025 at 9:21 AM
The work from my time at @utah.edu with @wilkescenter.bsky.social has just been published in ACP as a highlight paper.
RO2 accretion products could comprise a substantial fraction of PM2.5, and the chemical structure may be different than previously assumed! 🤔
doi.org/10.5194/acp-...
RO2 accretion products could comprise a substantial fraction of PM2.5, and the chemical structure may be different than previously assumed! 🤔
doi.org/10.5194/acp-...
Reposted by Alfie Mayhew
Industrialized economies are increasingly turning their backs on aid and diplomacy to build up their armies.
But analysts fear that hostile and unreliable states like Russia, China and Turkey will step in to fill the gap.
🔗 politi.co/4i4fUWR
But analysts fear that hostile and unreliable states like Russia, China and Turkey will step in to fill the gap.
🔗 politi.co/4i4fUWR
November 17, 2025 at 11:14 AM
Industrialized economies are increasingly turning their backs on aid and diplomacy to build up their armies.
But analysts fear that hostile and unreliable states like Russia, China and Turkey will step in to fill the gap.
🔗 politi.co/4i4fUWR
But analysts fear that hostile and unreliable states like Russia, China and Turkey will step in to fill the gap.
🔗 politi.co/4i4fUWR
Reposted by Alfie Mayhew
New from me: I spoke to two scientists who originally helped spread the use of carbon capture. They now say it's being misused. Here's why (gift link):
The Scientists Who Popularized Carbon Capture Have a Warning About It
Many countries are relying on it to meet their climate goals, but it might hurt more than help, they say.
www.bloomberg.com
November 12, 2025 at 11:23 AM
New from me: I spoke to two scientists who originally helped spread the use of carbon capture. They now say it's being misused. Here's why (gift link):
Check out my latest short article with Chembites summarising a recent paper demonstrating the use of additional chemical metrics in assessing the health impacts of exposure to air pollution 😶🌫️
chembites.org/2025/10/31/b...
chembites.org/2025/10/31/b...
Beyond Particle Mass: Linking Chemical Composition to Air Quality Health Effects – Chembites
chembites.org
October 31, 2025 at 12:37 PM
Check out my latest short article with Chembites summarising a recent paper demonstrating the use of additional chemical metrics in assessing the health impacts of exposure to air pollution 😶🌫️
chembites.org/2025/10/31/b...
chembites.org/2025/10/31/b...
Reposted by Alfie Mayhew
In any discussion of food and farming, unless your solution can be scaled to feed 8 billion people, you shouldn't be taken seriously. Unfortunately, cottagecore fantasies that would feed only the richest consumers, leaving billions to starve, are all too common.
www.monbiot.com/2023/10/04/t...
www.monbiot.com/2023/10/04/t...
The Cruel Fantasies of Well-Fed People
The astonishing story of how a movement’s quest for rural simplicity drifted into a formula for mass death
www.monbiot.com
October 14, 2025 at 10:21 AM
In any discussion of food and farming, unless your solution can be scaled to feed 8 billion people, you shouldn't be taken seriously. Unfortunately, cottagecore fantasies that would feed only the richest consumers, leaving billions to starve, are all too common.
www.monbiot.com/2023/10/04/t...
www.monbiot.com/2023/10/04/t...
Reposted by Alfie Mayhew
"When colleagues & I interviewed people (...) about the act a few years ago, they emphasised the predictable process, the clear rules on accountability & the evidence-based discourse it has enabled." @samfankhauser.bsky.social @theconversation.com theconversation.com/tory-plan-to...
Tory plan to scrap net zero target puts UK climate leadership at risk
The country has enjoyed a unique period of consensus and stability under the Climate Change Act, which the Tories now want to scrap.
theconversation.com
October 8, 2025 at 8:13 AM
"When colleagues & I interviewed people (...) about the act a few years ago, they emphasised the predictable process, the clear rules on accountability & the evidence-based discourse it has enabled." @samfankhauser.bsky.social @theconversation.com theconversation.com/tory-plan-to...
Reposted by Alfie Mayhew
Perhaps paradoxically for those not familiar with the science, the Atlantic 'cold blob' enhances summer heat and drought in Europe by enhancing south-westerly flow, which will impact agriculture, forestry, tourism, fire risk and more. Slide from a recent talk I gave in Madrid.
June 11, 2025 at 7:03 PM
Perhaps paradoxically for those not familiar with the science, the Atlantic 'cold blob' enhances summer heat and drought in Europe by enhancing south-westerly flow, which will impact agriculture, forestry, tourism, fire risk and more. Slide from a recent talk I gave in Madrid.