Rolf Erdahl
@rolferd.bsky.social
OboeBass! bassist
Music is for everybody! Love nature!
Born at 315.58 ppm CO2
#ClimateChangeBugsMe
Faith and Climate
Music is for everybody! Love nature!
Born at 315.58 ppm CO2
#ClimateChangeBugsMe
Faith and Climate
Pinned
Rolf Erdahl
@rolferd.bsky.social
· Dec 3
Just to say, if you are 30, more than half of all human fossil fuel emissions have occurred in your lifetime #dataviz
One of the most compelling climate graphics. Right up there with the Hockey Stick and the Keeling Curve.
#ClimateChangeBugsMe
This is happening on our watch.
It’s 50 years past time to clean this mess up. Now is the next best time to make a difference.
#ClimateChangeBugsMe
This is happening on our watch.
It’s 50 years past time to clean this mess up. Now is the next best time to make a difference.
Reposted by Rolf Erdahl
.
What is climate change? A really simple guide - BBC News
Find out more: www.bbc.co.uk/news/articles...
#ClimateAction
What is climate change? A really simple guide - BBC News
Find out more: www.bbc.co.uk/news/articles...
#ClimateAction
What is climate change? A really simple guide
Human activities are causing the world to heat up, posing serious threats to people and nature.
www.bbc.co.uk
November 20, 2025 at 9:30 AM
.
What is climate change? A really simple guide - BBC News
Find out more: www.bbc.co.uk/news/articles...
#ClimateAction
What is climate change? A really simple guide - BBC News
Find out more: www.bbc.co.uk/news/articles...
#ClimateAction
#ClimateChangeBugsMe
In small and annoying and huge and threatening ways it impacts us all and is a strong concern for most people.
If you feel hopeless, look around and see people creating solutions and find ways you can act to generate hope however you can, wherever you are.
In small and annoying and huge and threatening ways it impacts us all and is a strong concern for most people.
If you feel hopeless, look around and see people creating solutions and find ways you can act to generate hope however you can, wherever you are.
November 20, 2025 at 1:39 PM
#ClimateChangeBugsMe
In small and annoying and huge and threatening ways it impacts us all and is a strong concern for most people.
If you feel hopeless, look around and see people creating solutions and find ways you can act to generate hope however you can, wherever you are.
In small and annoying and huge and threatening ways it impacts us all and is a strong concern for most people.
If you feel hopeless, look around and see people creating solutions and find ways you can act to generate hope however you can, wherever you are.
Looking for how you can be part of climate problem solving?
Follow #DrawdownExplorer
See how you can leverage your strengths, passions, and commitment to make a difference.
Follow #DrawdownExplorer
See how you can leverage your strengths, passions, and commitment to make a difference.
The Drawdown Explorer puts the world’s leading climate solutions at your fingertips. 🌍 This quick how-to video will show you how to navigate, discover insights, and turn knowledge into action.
#drawdownexplorer
#drawdownexplorer
November 18, 2025 at 6:22 PM
Looking for how you can be part of climate problem solving?
Follow #DrawdownExplorer
See how you can leverage your strengths, passions, and commitment to make a difference.
Follow #DrawdownExplorer
See how you can leverage your strengths, passions, and commitment to make a difference.
Everything we can do to keep the climate crisis from getting worse is a good idea.
#ClimateChangeBugsMe
A) Fix it
B) Ignore it
C) Keep feeding the fire
Are all choices. Only one of those is a viable choice.
Follow #Drawdown for solution ideas that fit your strengths & situations.
#ClimateChangeBugsMe
A) Fix it
B) Ignore it
C) Keep feeding the fire
Are all choices. Only one of those is a viable choice.
Follow #Drawdown for solution ideas that fit your strengths & situations.
Stopping deforestation is one of the best things we can do for climate, nature, and people worldwide. But it still doesn’t get the attention or funding it deserves.
And that’s why we prioritize it in the new Drawdown Explorer.
And that’s why we prioritize it in the new Drawdown Explorer.
One of Brazil's top priorities for #COP30 is to fund the Tropical Forest Forever Facility, which would finance efforts to protect forest ecosystems worldwide.
Learn more about why protecting forests is one of the most powerful solutions for people, nature, and climate at: 🔗 https://bit.ly/4o2QWZp
Learn more about why protecting forests is one of the most powerful solutions for people, nature, and climate at: 🔗 https://bit.ly/4o2QWZp
November 18, 2025 at 6:15 PM
Everything we can do to keep the climate crisis from getting worse is a good idea.
#ClimateChangeBugsMe
A) Fix it
B) Ignore it
C) Keep feeding the fire
Are all choices. Only one of those is a viable choice.
Follow #Drawdown for solution ideas that fit your strengths & situations.
#ClimateChangeBugsMe
A) Fix it
B) Ignore it
C) Keep feeding the fire
Are all choices. Only one of those is a viable choice.
Follow #Drawdown for solution ideas that fit your strengths & situations.
Reposted by Rolf Erdahl
I attended a talk by a scientist at a Chinese University and realized that all the background climate data that she used came from the US (CO₂ Keeling Curve, global temperature time series, etc.). Although China funds a lot of research, the destruction of US science will affect science globally.
November 17, 2025 at 10:26 PM
I attended a talk by a scientist at a Chinese University and realized that all the background climate data that she used came from the US (CO₂ Keeling Curve, global temperature time series, etc.). Although China funds a lot of research, the destruction of US science will affect science globally.
Reposted by Rolf Erdahl
It is really getting harder and harder to glibly dismiss the data centre driven growth of demand in the US, which is causing coal growth domestically and impacting the entire planet's emissions
Yes you can present it with a huge denominator to make it look small but that doesn't change the dynamics
Yes you can present it with a huge denominator to make it look small but that doesn't change the dynamics
Chinese and EU emissions were more or less flat in 2025 (Chinese emissions may have actually declined slightly, but its too early to know for sure: www.carbonbrief.org/...).
US emissions increases drove much of the increase in global emissions in 2025.
US emissions increases drove much of the increase in global emissions in 2025.
November 13, 2025 at 8:24 AM
It is really getting harder and harder to glibly dismiss the data centre driven growth of demand in the US, which is causing coal growth domestically and impacting the entire planet's emissions
Yes you can present it with a huge denominator to make it look small but that doesn't change the dynamics
Yes you can present it with a huge denominator to make it look small but that doesn't change the dynamics
Keep looking up! View from our Apple Valley, MN backyard tonight.
November 12, 2025 at 4:20 AM
Keep looking up! View from our Apple Valley, MN backyard tonight.
Reposted by Rolf Erdahl
Well, well, well. It turns out more voters blame fossil fuels than renewable energy for high electricity prices—and the most voters, correctly, blame utilities.
So if they promote more fossil fuels to lower costs, @mattyglesias.bsky.social, Dems will fail to campaign on voters' *actual* positions.
So if they promote more fossil fuels to lower costs, @mattyglesias.bsky.social, Dems will fail to campaign on voters' *actual* positions.
![Voters Most Blame Utility Companies for Higher Electric
Utility Bills
Who or what do you think is most responsible for higher electric utility bills?
Utility companies increasing profits 38%
Increased energy demand from new industries (like Al) %14
Extreme weather events causing higher energy demand 11%
Aging or inadequate energy infrastructure 10%
Foreign conflicts limiting energy supply 9%
Increased reliance on fossil fuels 8%
Increased reliance on wind and solar energy 5%
Something else [please specify] 5%
September 19-22, 2025 survey of 1,361 U.S. likely voters
DATA FOR PROGRESS](https://cdn.bsky.app/img/feed_thumbnail/plain/did:plc:xalxqffcayyidntafmptzhta/bafkreihgf6guuz7xvkxnw6pr4e3bfyl6xwkmtmavn5pcyn7md4czj7i2qu@jpeg)
November 11, 2025 at 6:37 PM
Well, well, well. It turns out more voters blame fossil fuels than renewable energy for high electricity prices—and the most voters, correctly, blame utilities.
So if they promote more fossil fuels to lower costs, @mattyglesias.bsky.social, Dems will fail to campaign on voters' *actual* positions.
So if they promote more fossil fuels to lower costs, @mattyglesias.bsky.social, Dems will fail to campaign on voters' *actual* positions.
The more people who choose not to be accomplices to atrocities the better.
NEW via CNN: “The United Kingdom is no longer sharing intelligence with the US about suspected drug trafficking vessels in the Caribbean because it does not want to be complicit in US military strikes and believes the attacks are illegal”
Exclusive: UK suspends some intelligence sharing with US over boat strike concerns in major break | CNN Politics
The United Kingdom is no longer sharing intelligence with the US about suspected drug trafficking vessels in the Caribbean because it does not want to be complicit in US military strikes and believes ...
www.cnn.com
November 11, 2025 at 5:59 PM
The more people who choose not to be accomplices to atrocities the better.
47 destroys things of national cultural and historical significance (East Wing, AID, Goddard, Rose Garden, Constitution, …) because in comparison they make utterly clear how small, petty, and insignificant his tacky gilded faux fancy flourishes and planned monuments to himself are.
Have you heard about this?
"As the govt shutdown drags on, buildings at NASA's Goddard Space Flight Center (HQ for the Webb telescope among other missions) are being emptied without notice. Highly specialized equipment is at risk of being thrown away like trash."
h/t @climatebrad.hillheat.com
"As the govt shutdown drags on, buildings at NASA's Goddard Space Flight Center (HQ for the Webb telescope among other missions) are being emptied without notice. Highly specialized equipment is at risk of being thrown away like trash."
h/t @climatebrad.hillheat.com
NASA may be quietly gutting an iconic campus with what it calls strategic closures, workers fear | CNN
Buildings at Goddard’s Maryland campus are being emptied and padlocked, sources say. NASA leadership has pushed back against the concerns.
www.cnn.com
November 10, 2025 at 2:07 AM
47 destroys things of national cultural and historical significance (East Wing, AID, Goddard, Rose Garden, Constitution, …) because in comparison they make utterly clear how small, petty, and insignificant his tacky gilded faux fancy flourishes and planned monuments to himself are.
Is this the wave of the future, or just another internet bubble poised to suck us dry?
no amount of state propaganda will ever convince me this man is my enemy
November 9, 2025 at 5:22 PM
Is this the wave of the future, or just another internet bubble poised to suck us dry?
I’ve lived in Canada and Norway and the U.S. The U.S. “health care system” is ludicrously bad and unfair in comparison. The general quality of life is lower as well.
We pay more and get less. Must be a winning formula for somebody at everyone else’s expense.
We pay more and get less. Must be a winning formula for somebody at everyone else’s expense.
November 8, 2025 at 8:40 PM
I’ve lived in Canada and Norway and the U.S. The U.S. “health care system” is ludicrously bad and unfair in comparison. The general quality of life is lower as well.
We pay more and get less. Must be a winning formula for somebody at everyone else’s expense.
We pay more and get less. Must be a winning formula for somebody at everyone else’s expense.
Not allowing empirically verifiable facts to be stated does not make them go away.
47’s duck and cover presidency isn’t very inspiring.
47’s duck and cover presidency isn’t very inspiring.
We should have updated jobs numbers today.
But Trump’s government shutdown is leaving us in the dark about our economy.
And he won’t release the already prepared jobs numbers from September.
Trump needs to release this critical data NOW.
But Trump’s government shutdown is leaving us in the dark about our economy.
And he won’t release the already prepared jobs numbers from September.
Trump needs to release this critical data NOW.
November 8, 2025 at 2:45 PM
Not allowing empirically verifiable facts to be stated does not make them go away.
47’s duck and cover presidency isn’t very inspiring.
47’s duck and cover presidency isn’t very inspiring.
Reposted by Rolf Erdahl
Every month for the last 77 years, the Bureau of Labor Statistics has estimated Americans' unemployment rate
This streak dies tomorrow
Govt staff could not survey Americans about whether they're working or looking for work in Oct, the 1st time in 934 months
This blind spot will remain forever
This streak dies tomorrow
Govt staff could not survey Americans about whether they're working or looking for work in Oct, the 1st time in 934 months
This blind spot will remain forever
Here's the planned BLS data release schedule for Nov 2025.
On Tues, it couldn't release Sept job openings, hires, layoffs and firings data.
This morning, it couldn't release 2025Q3 business Productivity and Costs data.
Tomorrow, it can't release Oct 2025 #JobsReport
www.bls.gov/schedule/202...
On Tues, it couldn't release Sept job openings, hires, layoffs and firings data.
This morning, it couldn't release 2025Q3 business Productivity and Costs data.
Tomorrow, it can't release Oct 2025 #JobsReport
www.bls.gov/schedule/202...
November 6, 2025 at 2:34 PM
Every month for the last 77 years, the Bureau of Labor Statistics has estimated Americans' unemployment rate
This streak dies tomorrow
Govt staff could not survey Americans about whether they're working or looking for work in Oct, the 1st time in 934 months
This blind spot will remain forever
This streak dies tomorrow
Govt staff could not survey Americans about whether they're working or looking for work in Oct, the 1st time in 934 months
This blind spot will remain forever
Why can’t we have nice things like cheap, profitable, clean green tech?
At every level, a choice had to be made (or sold or extorted) to NOT lead the world in this. At everyone’s ultimate expense.
Beyond short-sighted and stupid. It’s not even good greed.
At every level, a choice had to be made (or sold or extorted) to NOT lead the world in this. At everyone’s ultimate expense.
Beyond short-sighted and stupid. It’s not even good greed.
The US is the world's largest oil and gas producer. Yet, "China is now making more money from exporting green technology than America makes from exporting fossil fuels."
China’s clean-energy revolution will reshape markets and politics
The world’s biggest manufacturer now has an interest in the world decarbonising
www.economist.com
November 7, 2025 at 12:32 PM
Why can’t we have nice things like cheap, profitable, clean green tech?
At every level, a choice had to be made (or sold or extorted) to NOT lead the world in this. At everyone’s ultimate expense.
Beyond short-sighted and stupid. It’s not even good greed.
At every level, a choice had to be made (or sold or extorted) to NOT lead the world in this. At everyone’s ultimate expense.
Beyond short-sighted and stupid. It’s not even good greed.
Reposted by Rolf Erdahl
The US is the world's largest oil and gas producer. Yet, "China is now making more money from exporting green technology than America makes from exporting fossil fuels."
China’s clean-energy revolution will reshape markets and politics
The world’s biggest manufacturer now has an interest in the world decarbonising
www.economist.com
November 7, 2025 at 11:05 AM
The US is the world's largest oil and gas producer. Yet, "China is now making more money from exporting green technology than America makes from exporting fossil fuels."
Reposted by Rolf Erdahl
UN Secretary General António Guterres declared the failure to limit global heating to 1.5°C a "moral failure and deadly negligence" at the #COP30 climate summit in Belém, Brazil.
www.theguardian.com/environment/...
www.theguardian.com/environment/...
Missing 1.5C climate target is a moral failure, UN chief tells Cop30 summit
UN secretary general António Guterres urges opening session in Brazil to bring about a ‘fundamental paradigm shift’
www.theguardian.com
November 6, 2025 at 8:37 PM
UN Secretary General António Guterres declared the failure to limit global heating to 1.5°C a "moral failure and deadly negligence" at the #COP30 climate summit in Belém, Brazil.
www.theguardian.com/environment/...
www.theguardian.com/environment/...
Reposted by Rolf Erdahl
If I were running in next year's midterms, I'd be saying: Aussies are getting free electricity, and we're getting huge price spikes.
Because they built solar, and Trump is blocking it.
open.substack.com/pub/billmcki...
Because they built solar, and Trump is blocking it.
open.substack.com/pub/billmcki...
Free Electricity. Like, at no cost. For everyone. Now.
Let's talk about affordability, abundance, and Australia--and why thanks to Trump we can't have nice things
open.substack.com
November 5, 2025 at 10:10 PM
If I were running in next year's midterms, I'd be saying: Aussies are getting free electricity, and we're getting huge price spikes.
Because they built solar, and Trump is blocking it.
open.substack.com/pub/billmcki...
Because they built solar, and Trump is blocking it.
open.substack.com/pub/billmcki...
What 47’s doing is not in reaction to an emergency—It IS the emergency.
I got so much hate last time I said this:
Even after 9/11, the Bush admin did not declare martial law, cancel elections, or put non-criminals in cages. They showed self-constraint and deserve some credit for that.
Even after 9/11, the Bush admin did not declare martial law, cancel elections, or put non-criminals in cages. They showed self-constraint and deserve some credit for that.
November 5, 2025 at 3:22 PM
What 47’s doing is not in reaction to an emergency—It IS the emergency.
Reposted by Rolf Erdahl
If we don’t fix the climate, pollution, and nature crises, we can’t fix anything. They are already actively amplifying poverty, hunger, and division. They are what stand between all of us, regardless of geography or ideology, and the better future we all seek. That's why I'm convinced that ...
November 4, 2025 at 5:17 PM
If we don’t fix the climate, pollution, and nature crises, we can’t fix anything. They are already actively amplifying poverty, hunger, and division. They are what stand between all of us, regardless of geography or ideology, and the better future we all seek. That's why I'm convinced that ...
Vote!
We do lots of school shows & see first hand the effects of voting up or down referendums.
You get the best bang for your buck for your community and for everyone’s future when you vote to support kids and teachers and facilities and programs in your school districts.
Vote for our future!
We do lots of school shows & see first hand the effects of voting up or down referendums.
You get the best bang for your buck for your community and for everyone’s future when you vote to support kids and teachers and facilities and programs in your school districts.
Vote for our future!
November 4, 2025 at 6:31 PM
Vote!
We do lots of school shows & see first hand the effects of voting up or down referendums.
You get the best bang for your buck for your community and for everyone’s future when you vote to support kids and teachers and facilities and programs in your school districts.
Vote for our future!
We do lots of school shows & see first hand the effects of voting up or down referendums.
You get the best bang for your buck for your community and for everyone’s future when you vote to support kids and teachers and facilities and programs in your school districts.
Vote for our future!
Reposted by Rolf Erdahl
Lingering questions: If I (an HVAC company, say) buy and install the equipment and claim the tax credit, how long do I have to retain ownership? Can I sell it to you (the owner of the building I installed in) after one day? One year? Longer?
Pretty cool! Companies that install geothermal heat pumps and/or thermal storage can get (and transfer) 30-50% tax credits, provided they retain ownership of the equipment and get paid via leases or other third-party ownership models. Quick thread with a few more details. 1/
The loophole that could give clean heat a boost under Trump
The OBBBA killed tax credits for heat pumps, but kept them for commercially leased geothermal and thermal storage systems — a path to keep home clean heat…
www.canarymedia.com
November 3, 2025 at 11:09 PM
Lingering questions: If I (an HVAC company, say) buy and install the equipment and claim the tax credit, how long do I have to retain ownership? Can I sell it to you (the owner of the building I installed in) after one day? One year? Longer?
And once they’re burned they’re used up, except for their contribution to global warming.
A ship packed with solar panels will weigh less and its cargo will keep producing energy for 30 years.
Without emitting greenhouse gasses.
A ship packed with solar panels will weigh less and its cargo will keep producing energy for 30 years.
Without emitting greenhouse gasses.
A statistic that continues to live rent free in my mind: half of all international shipping is just moving fossil fuels around.
November 4, 2025 at 9:19 AM
And once they’re burned they’re used up, except for their contribution to global warming.
A ship packed with solar panels will weigh less and its cargo will keep producing energy for 30 years.
Without emitting greenhouse gasses.
A ship packed with solar panels will weigh less and its cargo will keep producing energy for 30 years.
Without emitting greenhouse gasses.
Reposted by Rolf Erdahl
.
Making EVs takes big energy, but after 2 years, they’re cleaner than gas-fueled cars, study finds | AP News
Find out more: apnews.com/article/climate-...
#ClimateAction
Making EVs takes big energy, but after 2 years, they’re cleaner than gas-fueled cars, study finds | AP News
Find out more: apnews.com/article/climate-...
#ClimateAction
Study finds EVs quickly overcome their energy-intensive build to be cleaner than gas cars
Producing and manufacturing electric vehicles and their batteries uses a lot of energy, leading many to be skeptical about the environmental benefits of going electric.
apnews.com
November 4, 2025 at 8:30 AM
.
Making EVs takes big energy, but after 2 years, they’re cleaner than gas-fueled cars, study finds | AP News
Find out more: apnews.com/article/climate-...
#ClimateAction
Making EVs takes big energy, but after 2 years, they’re cleaner than gas-fueled cars, study finds | AP News
Find out more: apnews.com/article/climate-...
#ClimateAction
The sun shines just as well OboeBass! The US as in Australia. Seems like US policies on solar power are backwards and upside down to what they’ve figured out Down Under.
The sun charges the same for its photons everywhere.
$0 in perpetuity is a pretty good deal.
The sun charges the same for its photons everywhere.
$0 in perpetuity is a pretty good deal.
Absolutely amazing: they've got so much solar in Australia that they need more people to use more of it, so the gov't has instructed energy retailers to offer *at least three hours of free power* during the middle of the day.
Meanwhile fossil-addled US struggles with an energy-price crisis ...
Meanwhile fossil-addled US struggles with an energy-price crisis ...
Energy retailers to be directed to offer free power three hours a day
Saying there is enough solar power for everyone in the daytime, Climate Change Minister Chris Bowen will direct retailers to provide three hours of free power every day to consumers.
www.abc.net.au
November 3, 2025 at 10:58 PM
The sun shines just as well OboeBass! The US as in Australia. Seems like US policies on solar power are backwards and upside down to what they’ve figured out Down Under.
The sun charges the same for its photons everywhere.
$0 in perpetuity is a pretty good deal.
The sun charges the same for its photons everywhere.
$0 in perpetuity is a pretty good deal.