Joan Johnson
@jjohnso.bsky.social
Concerned about climate change impacts; mitigation and adaptation for future generations. Everything is interdependent and interconnected.
Reposted by Joan Johnson
A little perspective…
Our Solar System is orbiting the center of our Galaxy at about 220 km/s so in 2025 we collectively traveled something like 7 billion kilometers across the Milky Way. Once in a while, when you have a moment, it’s worthwhile to take a look around, see where you are, and appreciate how far you’ve come.
January 1, 2026 at 5:32 AM
A little perspective…
A little perspective…
Our Solar System is orbiting the center of our Galaxy at about 220 km/s so in 2025 we collectively traveled something like 7 billion kilometers across the Milky Way. Once in a while, when you have a moment, it’s worthwhile to take a look around, see where you are, and appreciate how far you’ve come.
January 1, 2026 at 2:08 PM
Reposted by Joan Johnson
Arctic sea-ice extent in 2025 was record low in
January 🥇
February 🥇
March 🥇
and December 🥇
and the second lowest in
June 🥈
November 🥈
and YEARLY 🥈
No blue cells in any month since 2013 ...
January 🥇
February 🥇
March 🥇
and December 🥇
and the second lowest in
June 🥈
November 🥈
and YEARLY 🥈
No blue cells in any month since 2013 ...
January 1, 2026 at 11:42 AM
Arctic sea-ice extent in 2025 was record low in
January 🥇
February 🥇
March 🥇
and December 🥇
and the second lowest in
June 🥈
November 🥈
and YEARLY 🥈
No blue cells in any month since 2013 ...
January 🥇
February 🥇
March 🥇
and December 🥇
and the second lowest in
June 🥈
November 🥈
and YEARLY 🥈
No blue cells in any month since 2013 ...
Reposted by Joan Johnson
From rent to utility bills: the politicians and advocates making climate policy part of the affordability agenda: As the Trump administration derides climate policy as a ‘scam’, emissions-cutting measures are gaining popularity A group of progressive politicians and advocates are reframin...
From rent to utility bills: the politicians and advocates making climate policy part of the affordability agenda
From rent to utility bills: the politicians and advocates making climate policy part of the affordability agenda: As the Trump administration derides climate policy as a ‘scam’, emissions-cutting measures are gaining popularity A group of progressive politicians and advocates are reframin...
www.theguardian.com
January 1, 2026 at 12:38 PM
From rent to utility bills: the politicians and advocates making climate policy part of the affordability agenda: As the Trump administration derides climate policy as a ‘scam’, emissions-cutting measures are gaining popularity A group of progressive politicians and advocates are reframin...
Reposted by Joan Johnson
The forces behind the dangerous anti-science movement | I discussed my book w/ @peterhotezmdphd.bsky.social, #ScienceUnderSiege, with @ethanelkind.bsky.social of @npr.org / @kalwradio.bsky.social #YourCall radio: www.kalw.org/show/your-ca...
The forces behind the dangerous anti-science movement
In their new book, "Science Under Siege," Peter Hotez and Michael Mann reveal the main forces threatening science: plutocrats, pros, petrostates, phonies, and the press.
www.kalw.org
December 30, 2025 at 4:18 PM
The forces behind the dangerous anti-science movement | I discussed my book w/ @peterhotezmdphd.bsky.social, #ScienceUnderSiege, with @ethanelkind.bsky.social of @npr.org / @kalwradio.bsky.social #YourCall radio: www.kalw.org/show/your-ca...
Reposted by Joan Johnson
Championing Canada’s transition to electric vehicles was a major focus for #PembinaIn2025.
Policies that make EVs affordable & accessible for Canadians are key to accelerating adoption and keeping Canada competitive. ➡️ buff.ly/nh5Zgpy
Policies that make EVs affordable & accessible for Canadians are key to accelerating adoption and keeping Canada competitive. ➡️ buff.ly/nh5Zgpy
December 31, 2025 at 2:01 PM
Championing Canada’s transition to electric vehicles was a major focus for #PembinaIn2025.
Policies that make EVs affordable & accessible for Canadians are key to accelerating adoption and keeping Canada competitive. ➡️ buff.ly/nh5Zgpy
Policies that make EVs affordable & accessible for Canadians are key to accelerating adoption and keeping Canada competitive. ➡️ buff.ly/nh5Zgpy
Reposted by Joan Johnson
Reposted by Joan Johnson
2025 will conclude as the second hottest year on record, surpassed only by 2024.
It continues a recent trend of exceptional, unexplained warming. The last three years have been, by a wide margin, the hottest ever recorded.
It continues a recent trend of exceptional, unexplained warming. The last three years have been, by a wide margin, the hottest ever recorded.
2025 Was Another Exceptionally Hot Year
This year will conclude as the second hottest on record, surpassed only by 2024. It continues a recent trend of exceptional, unexplained warming. The last three years have been, by a wide margin, the hottest ever recorded.
e360.yale.edu
December 30, 2025 at 1:00 PM
2025 will conclude as the second hottest year on record, surpassed only by 2024.
It continues a recent trend of exceptional, unexplained warming. The last three years have been, by a wide margin, the hottest ever recorded.
It continues a recent trend of exceptional, unexplained warming. The last three years have been, by a wide margin, the hottest ever recorded.
Reposted by Joan Johnson
Lake-effect snow squalls and Arctic cold will hit parts of southern Ontario through midweek, causing rapidly changing travel conditions.
https://ow.ly/bowP50XQifT
https://ow.ly/bowP50XQifT
Snow squalls to slam southern Ontario through midweek as Arctic air lingers - The Weather Network
Bands of lake-effect snow and frigid temperatures will keep parts of southern Ontario freezing until Wednesday, with rapidly changing travel conditions before improving Thursday.
ow.ly
December 30, 2025 at 1:05 PM
Lake-effect snow squalls and Arctic cold will hit parts of southern Ontario through midweek, causing rapidly changing travel conditions.
https://ow.ly/bowP50XQifT
https://ow.ly/bowP50XQifT
Reposted by Joan Johnson
I encourage everyone to read this beautiful piece by my friend Lisa Graumlich.
open.substack.com/pub/lisagrau...
open.substack.com/pub/lisagrau...
THIN PLACES: CLIMATE CHANGE AND SEEING EARTH WHOLE
Published on the winter solstice, 2025 - a thin time for reflection and turning.
open.substack.com
December 29, 2025 at 5:32 AM
I encourage everyone to read this beautiful piece by my friend Lisa Graumlich.
open.substack.com/pub/lisagrau...
open.substack.com/pub/lisagrau...
Reposted by Joan Johnson
You probably heard the US admin is threatening to break up the National Center for Atmospheric Research: but did you know they already froze funding for the 9 regional Climate Science Adaptation Centers? From tracking invasives to helping tribes with drought, here's why the CASCs matter ⬇️
From invasive species tracking to water security – what’s lost with federal funding cuts at US Climate Adaptation Science Centers
The people who manage America’s aquifers, wetlands, shorelines and recreation areas rely on federal science as they face new and rising risks in a changing climate.
theconversation.com
December 29, 2025 at 12:02 PM
You probably heard the US admin is threatening to break up the National Center for Atmospheric Research: but did you know they already froze funding for the 9 regional Climate Science Adaptation Centers? From tracking invasives to helping tribes with drought, here's why the CASCs matter ⬇️
Reposted by Joan Johnson
Day 9 of my 20 days of climate starter packs features professionals who study, work, or write at the intersection of climate, pollution, and health-related issues, from extreme heat to infectious diseases. (not mental health, that's another pack - coming tomorrow)
See below for previous days!
See below for previous days!
December 29, 2025 at 12:08 PM
Reposted by Joan Johnson
Day 10 of my "20 days of Climate Starter Packs" features experts at the intersection of mental health, public opinion, behavioural science, collective action and the climate crisis who help us address anxiety, grief, and psychological barriers to action. So vital!
See below for the previous days.
See below for the previous days.
December 29, 2025 at 12:07 PM
Day 10 of my "20 days of Climate Starter Packs" features experts at the intersection of mental health, public opinion, behavioural science, collective action and the climate crisis who help us address anxiety, grief, and psychological barriers to action. So vital!
See below for the previous days.
See below for the previous days.
Reposted by Joan Johnson
The Arctic just had its hottest year on record, while measures of sea ice hit a new low. via The Guardian
Sea Ice Hits New Low in Hottest Year on Record for the Arctic
The Arctic endured a year of record heat and shrunken sea ice as the world’s northern latitudes continue a rapid shift to becoming rainier and less ice-bound due to the climate crisis, scientists have reported.
e360.yale.edu
December 29, 2025 at 1:00 PM
The Arctic just had its hottest year on record, while measures of sea ice hit a new low. via The Guardian
Reposted by Joan Johnson
Major impacts are likely across Ontario as another powerful low-pressure system traverses the province with an entire assortment of hazardous conditions. https://ow.ly/Fbln50XPZif
Damaging winds, snow squalls raise outage threat in Ontario - The Weather Network
Icy hazards will transition over to powerful winds and snow squalls through Monday, increasing the risk of power outages across southern Ontario
ow.ly
December 29, 2025 at 1:42 PM
Major impacts are likely across Ontario as another powerful low-pressure system traverses the province with an entire assortment of hazardous conditions. https://ow.ly/Fbln50XPZif
Reposted by Joan Johnson
"The bill for extreme weather damages will continue to rise until the world slashes greenhouse gas emissions and phases out fossil fuels."
What some don't understand: it will rise disproportionately as resilience limits of infrastructure are increasingly exceeded.
www.theguardian.com/world/2025/d...
What some don't understand: it will rise disproportionately as resilience limits of infrastructure are increasingly exceeded.
www.theguardian.com/world/2025/d...
Cyclones, floods and wildfires among 2025’s costliest climate-related disasters
Christian Aid annual report’s top 10 disasters amounted to more than $120bn in insured losses
www.theguardian.com
December 27, 2025 at 10:19 AM
"The bill for extreme weather damages will continue to rise until the world slashes greenhouse gas emissions and phases out fossil fuels."
What some don't understand: it will rise disproportionately as resilience limits of infrastructure are increasingly exceeded.
www.theguardian.com/world/2025/d...
What some don't understand: it will rise disproportionately as resilience limits of infrastructure are increasingly exceeded.
www.theguardian.com/world/2025/d...
Reposted by Joan Johnson
After an extraordinary holiday heat dome across the US, get ready for a Polar Vortex Invasion next week! Cold air will surge deep South w/ 20s in the SE and 30s far into #Florida. The airmass won’t be super #cold up north. Instead the South will get the brunt, 15-20° below normal!
December 27, 2025 at 1:39 PM
Reposted by Joan Johnson
Ontario has a clean energy opportunity.
It could build a resilient, affordable energy future with wind and solar. Instead, the province plans to bet mostly on costly nuclear and gas generation.
💡 Learn how renewables can power Ontario’s future: www.pembina.org/pub/powering
#PembinaIn2025
It could build a resilient, affordable energy future with wind and solar. Instead, the province plans to bet mostly on costly nuclear and gas generation.
💡 Learn how renewables can power Ontario’s future: www.pembina.org/pub/powering
#PembinaIn2025
December 27, 2025 at 3:02 PM
Ontario has a clean energy opportunity.
It could build a resilient, affordable energy future with wind and solar. Instead, the province plans to bet mostly on costly nuclear and gas generation.
💡 Learn how renewables can power Ontario’s future: www.pembina.org/pub/powering
#PembinaIn2025
It could build a resilient, affordable energy future with wind and solar. Instead, the province plans to bet mostly on costly nuclear and gas generation.
💡 Learn how renewables can power Ontario’s future: www.pembina.org/pub/powering
#PembinaIn2025
Reposted by Joan Johnson
mRNA technology, which powered life-saving COVID-19 vaccines and is now rocketing new cancer therapeutics forward, underwent a scientific slowdown in the U.S. https://www.sciencenews.org/article/mrna-vaccines-diseases-tech
mRNA vaccines hold promise for many diseases. Now the tech is under fire
Researchers warn that halting federal contracts for mRNA vaccine research could weaken pandemic preparedness and slow medical advances.
www.sciencenews.org
December 25, 2025 at 12:45 AM
mRNA technology, which powered life-saving COVID-19 vaccines and is now rocketing new cancer therapeutics forward, underwent a scientific slowdown in the U.S. https://www.sciencenews.org/article/mrna-vaccines-diseases-tech
Reposted by Joan Johnson
Research shows that long before damage becomes visible, heat accumulates underground, weakening soils and reshaping landscapes.
https://ow.ly/Ift350XO2lZ
https://ow.ly/Ift350XO2lZ
Canada’s North is warming from the ground up, and our infrastructure isn’t ready - The Weather Network
Research shows that long before damage becomes visible, heat accumulates underground, weakening soils and reshaping landscapes
ow.ly
December 25, 2025 at 2:00 AM
Research shows that long before damage becomes visible, heat accumulates underground, weakening soils and reshaping landscapes.
https://ow.ly/Ift350XO2lZ
https://ow.ly/Ift350XO2lZ
Reposted by Joan Johnson
A Gigaton is a billion tons. Or 1000000000000 kg or 2204622621848.78 lbs
More than 100 of those lost from Antarctic and Greenland land ice (not sea ice, which is different) each and every year in recent decades.
That's the part not replaced by snowfall that helps drive up sea levels.
More than 100 of those lost from Antarctic and Greenland land ice (not sea ice, which is different) each and every year in recent decades.
That's the part not replaced by snowfall that helps drive up sea levels.
Antarctic and Greenland Ice Sheet Mass Losses
Average Mass Loss 2002–2025:
• Antarctica -135 Gigatons ice/year, global sea level rise 0.4mm/yr.
• Greenland -264 Gigatons ice/year, global sea level rise 0.8mm/yr.
#Antarctic #Greenland #IceSheet
NASA&JPL/Caltech
LEARN MORE: svs.gsfc.nasa.gov/31166/
Average Mass Loss 2002–2025:
• Antarctica -135 Gigatons ice/year, global sea level rise 0.4mm/yr.
• Greenland -264 Gigatons ice/year, global sea level rise 0.8mm/yr.
#Antarctic #Greenland #IceSheet
NASA&JPL/Caltech
LEARN MORE: svs.gsfc.nasa.gov/31166/
December 25, 2025 at 2:23 AM
A Gigaton is a billion tons. Or 1000000000000 kg or 2204622621848.78 lbs
More than 100 of those lost from Antarctic and Greenland land ice (not sea ice, which is different) each and every year in recent decades.
That's the part not replaced by snowfall that helps drive up sea levels.
More than 100 of those lost from Antarctic and Greenland land ice (not sea ice, which is different) each and every year in recent decades.
That's the part not replaced by snowfall that helps drive up sea levels.
Reposted by Joan Johnson
Indigenous knowledge is vital for biodiversity conservation. From Thailand's Karen tribe to Bhutan's yak herders, traditional practices are blending with modern solutions to shape sustainable solutions.
Learn more in this article by Puja Bhattacharjee (She/Her) : https://ow.ly/G6H650XAvM6
Learn more in this article by Puja Bhattacharjee (She/Her) : https://ow.ly/G6H650XAvM6
December 25, 2025 at 12:55 PM
Indigenous knowledge is vital for biodiversity conservation. From Thailand's Karen tribe to Bhutan's yak herders, traditional practices are blending with modern solutions to shape sustainable solutions.
Learn more in this article by Puja Bhattacharjee (She/Her) : https://ow.ly/G6H650XAvM6
Learn more in this article by Puja Bhattacharjee (She/Her) : https://ow.ly/G6H650XAvM6
Reposted by Joan Johnson
So the US administration considers hate speech and disinformation “American viewpoints“? 🙄
HateAid is an organization that also helps climate scientists to defend themselves against online abuse and threats.
Its founder was awarded the Order of Merit of the Federal Republic of Germany 🇩🇪 this year.
HateAid is an organization that also helps climate scientists to defend themselves against online abuse and threats.
Its founder was awarded the Order of Merit of the Federal Republic of Germany 🇩🇪 this year.
“Imran Ahmed, chief executive of Centre for Countering Digital Hate; Josephine Ballon and Anna-Lena von Hodenberg, leaders of HateAid, a German organization; former EU Commissioner Thierry Breton, who was responsible for digital affairs; and Clare Melford, who runs the Global Disinformation Index.”
US bars five Europeans it says pressured tech firms to censor American viewpoints online
The State Department is barring five Europeans it accuses of leading efforts to pressure U.S. tech firms to censor or suppress American viewpoints.
apnews.com
December 24, 2025 at 6:59 AM
So the US administration considers hate speech and disinformation “American viewpoints“? 🙄
HateAid is an organization that also helps climate scientists to defend themselves against online abuse and threats.
Its founder was awarded the Order of Merit of the Federal Republic of Germany 🇩🇪 this year.
HateAid is an organization that also helps climate scientists to defend themselves against online abuse and threats.
Its founder was awarded the Order of Merit of the Federal Republic of Germany 🇩🇪 this year.
Reposted by Joan Johnson
New Brown University Study finds Pervasive Disinformation in Congress about Offshore Wind
www.climatedevlab.brown.edu/post/new-bro...
www.climatedevlab.brown.edu/post/new-bro...
New Brown University Study finds Pervasive Disinformation in Congress about Offshore Wind
For the world to act on climate change, it is urgent that the United States develop fair and effective energy policies. To do so, decision makers need a full and balanced set of information about our ...
www.climatedevlab.brown.edu
December 24, 2025 at 7:21 AM
New Brown University Study finds Pervasive Disinformation in Congress about Offshore Wind
www.climatedevlab.brown.edu/post/new-bro...
www.climatedevlab.brown.edu/post/new-bro...
Reposted by Joan Johnson
Some consider the lack of weakening of the currents between Atlantic and Nordic Seas an argument against an ongoing #AMOC weakening.
Here we show why the opposite is true: AMOC weakening causes a temporary increase in Nordic Seas overturning. 🌊
egusphere.copernicus.org/preprints/20...
Here we show why the opposite is true: AMOC weakening causes a temporary increase in Nordic Seas overturning. 🌊
egusphere.copernicus.org/preprints/20...
Nordic Overturning Increases as AMOC Weakens in Response to Global Warming
Abstract. The Atlantic Meridional Overturning Circulation (AMOC) is weakening in response to global warming, while Nordic Seas Overturning Circulation (NOC) is projected to increase. So far, no causal...
egusphere.copernicus.org
December 24, 2025 at 11:59 AM
Some consider the lack of weakening of the currents between Atlantic and Nordic Seas an argument against an ongoing #AMOC weakening.
Here we show why the opposite is true: AMOC weakening causes a temporary increase in Nordic Seas overturning. 🌊
egusphere.copernicus.org/preprints/20...
Here we show why the opposite is true: AMOC weakening causes a temporary increase in Nordic Seas overturning. 🌊
egusphere.copernicus.org/preprints/20...