Mike Hansen
@mikeh01.bsky.social
Very concerned about climate change. Quals. in Science & IT. Following climate & energy topics.
Reposted by Mike Hansen
Probably worth a bit more attention than it is receiving.
“With the ongoing bleaching it’s almost overwhelming the capacity of people to do the monitoring they need to do...that this most recent, global-scale coral bleaching event is still ongoing takes the world’s reefs into uncharted waters."
“With the ongoing bleaching it’s almost overwhelming the capacity of people to do the monitoring they need to do...that this most recent, global-scale coral bleaching event is still ongoing takes the world’s reefs into uncharted waters."
More than 80% of the world’s reefs hit by bleaching after worst global event on record
An ashen pallor and an eerie stillness all that remains where there should be fluttering fish and vibrant colours in the reefscape, one conservationist says
www.theguardian.com
April 24, 2025 at 3:36 AM
Probably worth a bit more attention than it is receiving.
“With the ongoing bleaching it’s almost overwhelming the capacity of people to do the monitoring they need to do...that this most recent, global-scale coral bleaching event is still ongoing takes the world’s reefs into uncharted waters."
“With the ongoing bleaching it’s almost overwhelming the capacity of people to do the monitoring they need to do...that this most recent, global-scale coral bleaching event is still ongoing takes the world’s reefs into uncharted waters."
Reposted by Mike Hansen
A record increase in atmospheric CO2 according to data released by NOAA gml.noaa.gov/ccgg/trends/..., much higher than projected in the Global Carbon Budget essd.copernicus.org/articles/17/....
This occurred in the presence of an El Niño (red bars, data also from NOAA!).
What does this mean?
1/
This occurred in the presence of an El Niño (red bars, data also from NOAA!).
What does this mean?
1/
April 15, 2025 at 7:08 AM
A record increase in atmospheric CO2 according to data released by NOAA gml.noaa.gov/ccgg/trends/..., much higher than projected in the Global Carbon Budget essd.copernicus.org/articles/17/....
This occurred in the presence of an El Niño (red bars, data also from NOAA!).
What does this mean?
1/
This occurred in the presence of an El Niño (red bars, data also from NOAA!).
What does this mean?
1/
Reposted by Mike Hansen
Waters around northern tropical Australia were by far the hottest on record for January 2025. Data from 1900-2025 from ERSSTv5. Typically northern Australian water temperatures peak in late summer
www.bom.gov.au/cgi-bin/clim...
www.bom.gov.au/cgi-bin/clim...
February 4, 2025 at 11:34 PM
Waters around northern tropical Australia were by far the hottest on record for January 2025. Data from 1900-2025 from ERSSTv5. Typically northern Australian water temperatures peak in late summer
www.bom.gov.au/cgi-bin/clim...
www.bom.gov.au/cgi-bin/clim...
Reposted by Mike Hansen
A lot of folks asked why I through this January's record global temperatures were so unexpected.
I think this graph shows it pretty clearly: pretty much every other January with La Nina conditions has been a cooler than the surrounding years.
I think this graph shows it pretty clearly: pretty much every other January with La Nina conditions has been a cooler than the surrounding years.
February 3, 2025 at 10:15 PM
A lot of folks asked why I through this January's record global temperatures were so unexpected.
I think this graph shows it pretty clearly: pretty much every other January with La Nina conditions has been a cooler than the surrounding years.
I think this graph shows it pretty clearly: pretty much every other January with La Nina conditions has been a cooler than the surrounding years.
Reposted by Mike Hansen
WA is experiencing its second worst marine heatwave on record. It could overtake the devastating 2011 marine heatwave as the worst on record if it moves south. Good summary in The Conversation released yesterday theconversation.com/a-marine-hea...
A marine heatwave in northwest Australia is killing huge numbers of fish. It’s heading south
In 2010, an enormous marine heatwave devastated ocean life in Western Australia. Now another big one is taking hold – and heading towards Ningaloo.
theconversation.com
January 30, 2025 at 12:03 AM
WA is experiencing its second worst marine heatwave on record. It could overtake the devastating 2011 marine heatwave as the worst on record if it moves south. Good summary in The Conversation released yesterday theconversation.com/a-marine-hea...
Reposted by Mike Hansen
This could be the most terrifying article you'll read today, about how Trump is stuffing the EPA with lawyers and lobbyists for the oil and chemical industries who have worked to weaken climate and pollution protections and clearly don't care about human health.
Trump Stocks E.P.A. With Oil, Gas and Chemical Lobbyists (Gift Article)
Top political appointees are already at the E.P.A. preparing to erase the agency’s climate rules and pollution controls. Many of them have tried it before.
www.nytimes.com
January 26, 2025 at 8:09 AM
This could be the most terrifying article you'll read today, about how Trump is stuffing the EPA with lawyers and lobbyists for the oil and chemical industries who have worked to weaken climate and pollution protections and clearly don't care about human health.
Reposted by Mike Hansen
Should not surprise people at all how quickly US companies are dropping diversity programs. Corporations are not your friends and only have lip service to social movements because of perceived commercial benefit. Always look at what they’re doing, not what they’re saying
January 26, 2025 at 11:52 PM
Should not surprise people at all how quickly US companies are dropping diversity programs. Corporations are not your friends and only have lip service to social movements because of perceived commercial benefit. Always look at what they’re doing, not what they’re saying
Reposted by Mike Hansen
Solar is surging in every EU country ☀️🇪🇺
16 EU countries generated more than 10% of their electricity from solar in 2024, with 🇭🇺, 🇬🇷 and 🇪🇸 leading the charge.
ember-energy.org/lat...
16 EU countries generated more than 10% of their electricity from solar in 2024, with 🇭🇺, 🇬🇷 and 🇪🇸 leading the charge.
ember-energy.org/lat...
January 26, 2025 at 9:00 AM
Solar is surging in every EU country ☀️🇪🇺
16 EU countries generated more than 10% of their electricity from solar in 2024, with 🇭🇺, 🇬🇷 and 🇪🇸 leading the charge.
ember-energy.org/lat...
16 EU countries generated more than 10% of their electricity from solar in 2024, with 🇭🇺, 🇬🇷 and 🇪🇸 leading the charge.
ember-energy.org/lat...
Reposted by Mike Hansen
Solar generated 11% of EU electricity in 2024, overtaking coal which fell below 10% for the first time, according to @ember-energy.org EU gas generation declined for the fifth year in a row, and total fossil generation fell to a historic low.
#Upshift!
electrek.co/2025/01/22/s... 🔌💡
#Upshift!
electrek.co/2025/01/22/s... 🔌💡
Solar overtakes coal in the EU, and gas declines for 5th year running
Solar generated 11% of EU electricity in 2024, overtaking coal which fell below 10% for the first time, according to the European Electricity Review published today by think tank Ember.
electrek.co
January 24, 2025 at 11:33 PM
Solar generated 11% of EU electricity in 2024, overtaking coal which fell below 10% for the first time, according to @ember-energy.org EU gas generation declined for the fifth year in a row, and total fossil generation fell to a historic low.
#Upshift!
electrek.co/2025/01/22/s... 🔌💡
#Upshift!
electrek.co/2025/01/22/s... 🔌💡
Reposted by Mike Hansen
More than 20% of the Earth's surface recorded its locally hottest annual average temperature last year.
40% of the Earth had its hottest recorded year since 2020, and 85% since the year 2000.
🧪
40% of the Earth had its hottest recorded year since 2020, and 85% since the year 2000.
🧪
January 22, 2025 at 2:01 PM
More than 20% of the Earth's surface recorded its locally hottest annual average temperature last year.
40% of the Earth had its hottest recorded year since 2020, and 85% since the year 2000.
🧪
40% of the Earth had its hottest recorded year since 2020, and 85% since the year 2000.
🧪
Reposted by Mike Hansen
New UCLA rapid attribution study: “Climate change may be linked to roughly a quarter of the extreme fuel moisture deficit when the fires began.
The fires would still have been extreme without climate change, but probably somewhat smaller and less intense.”
sustainablela.ucla.edu/2025lawildfi...
The fires would still have been extreme without climate change, but probably somewhat smaller and less intense.”
sustainablela.ucla.edu/2025lawildfi...
Climate Change A Factor In Unprecedented LA Fires
sustainablela.ucla.edu
January 15, 2025 at 10:16 PM
New UCLA rapid attribution study: “Climate change may be linked to roughly a quarter of the extreme fuel moisture deficit when the fires began.
The fires would still have been extreme without climate change, but probably somewhat smaller and less intense.”
sustainablela.ucla.edu/2025lawildfi...
The fires would still have been extreme without climate change, but probably somewhat smaller and less intense.”
sustainablela.ucla.edu/2025lawildfi...
Reposted by Mike Hansen
Now that everyone has their annual temperature data out, here is a quick summary across groups.
In addition to record warmth in every dataset, it's the first year where most estimates are at least 1.5 °C (2.7 °F) warmer than the 1850-1900 baseline.
berkeleyearth.org/global-tempe...
🧪
In addition to record warmth in every dataset, it's the first year where most estimates are at least 1.5 °C (2.7 °F) warmer than the 1850-1900 baseline.
berkeleyearth.org/global-tempe...
🧪
January 10, 2025 at 5:02 PM
Now that everyone has their annual temperature data out, here is a quick summary across groups.
In addition to record warmth in every dataset, it's the first year where most estimates are at least 1.5 °C (2.7 °F) warmer than the 1850-1900 baseline.
berkeleyearth.org/global-tempe...
🧪
In addition to record warmth in every dataset, it's the first year where most estimates are at least 1.5 °C (2.7 °F) warmer than the 1850-1900 baseline.
berkeleyearth.org/global-tempe...
🧪
Reposted by Mike Hansen
All surface temperature products for 2024 are now live.
All show 2024 is the warmest year (very clearly).
The estimates of the change since the pre-industrial (1850-1900) are more uncertain but range from 1.46 to 1.62ºC.
It is therefore *likely* this was the first year that exceeded 1.5ºC.
All show 2024 is the warmest year (very clearly).
The estimates of the change since the pre-industrial (1850-1900) are more uncertain but range from 1.46 to 1.62ºC.
It is therefore *likely* this was the first year that exceeded 1.5ºC.
January 10, 2025 at 4:10 PM
All surface temperature products for 2024 are now live.
All show 2024 is the warmest year (very clearly).
The estimates of the change since the pre-industrial (1850-1900) are more uncertain but range from 1.46 to 1.62ºC.
It is therefore *likely* this was the first year that exceeded 1.5ºC.
All show 2024 is the warmest year (very clearly).
The estimates of the change since the pre-industrial (1850-1900) are more uncertain but range from 1.46 to 1.62ºC.
It is therefore *likely* this was the first year that exceeded 1.5ºC.
Reposted by Mike Hansen
Labor and Liberal governments have passed 49 anti-protest laws across the country over the last two decades.
It is damning (& history will judge us harshly) but no surprise that 🇦🇺 leads the world on climate protest arrests.
www.abc.net.au/news/2024-12...
It is damning (& history will judge us harshly) but no surprise that 🇦🇺 leads the world on climate protest arrests.
www.abc.net.au/news/2024-12...
Australia leads the world in arresting climate and environment protesters
A new study shows more than 20 per cent of climate and environment protests in Australia lead to arrests, more than in the UK, Norway, and the United States.
www.abc.net.au
December 16, 2024 at 4:34 AM
Labor and Liberal governments have passed 49 anti-protest laws across the country over the last two decades.
It is damning (& history will judge us harshly) but no surprise that 🇦🇺 leads the world on climate protest arrests.
www.abc.net.au/news/2024-12...
It is damning (& history will judge us harshly) but no surprise that 🇦🇺 leads the world on climate protest arrests.
www.abc.net.au/news/2024-12...
Reposted by Mike Hansen
For the first few decades of satellite observations, open water passages through the Arctic Ocean rarely formed.
Now, there is open water along the Russian and/or Canadian coast for 40+ days a year.
Now, there is open water along the Russian and/or Canadian coast for 40+ days a year.
December 4, 2024 at 10:43 PM
For the first few decades of satellite observations, open water passages through the Arctic Ocean rarely formed.
Now, there is open water along the Russian and/or Canadian coast for 40+ days a year.
Now, there is open water along the Russian and/or Canadian coast for 40+ days a year.
Reposted by Mike Hansen
With eleven months of the year now in, 2024 will be the warmest year on record in the ERA5 dataset, at around 1.59C (with a 95% confidence interval of 1.57C to 1.61C given uncertainty in December temperatures).
December 2, 2024 at 11:39 PM
With eleven months of the year now in, 2024 will be the warmest year on record in the ERA5 dataset, at around 1.59C (with a 95% confidence interval of 1.57C to 1.61C given uncertainty in December temperatures).
Reposted by Mike Hansen
We all think plastic pollution is a problem, and it is. In the nearly 70 years between 1950 and 2019, the world produced a total of ~9.5 billion tonnes of plastic.
But all the plastic we have EVER produced weighs as much as CO₂ we emitted into the atmosphere during the first three months of 2024!
But all the plastic we have EVER produced weighs as much as CO₂ we emitted into the atmosphere during the first three months of 2024!
November 29, 2024 at 6:44 PM
We all think plastic pollution is a problem, and it is. In the nearly 70 years between 1950 and 2019, the world produced a total of ~9.5 billion tonnes of plastic.
But all the plastic we have EVER produced weighs as much as CO₂ we emitted into the atmosphere during the first three months of 2024!
But all the plastic we have EVER produced weighs as much as CO₂ we emitted into the atmosphere during the first three months of 2024!
Reposted by Mike Hansen
Mass bleaching of corals on the Great Barrier Reef in early 2024 was the most severe and most widespread yet recorded - surpassing 1998, 2002, 2016, 2017, 2020 & 2022.
The overall mortality rate this year will exceed the 30% loss in 2016. www.nature.com/articles/s41...
The overall mortality rate this year will exceed the 30% loss in 2016. www.nature.com/articles/s41...
November 26, 2024 at 3:42 AM
Mass bleaching of corals on the Great Barrier Reef in early 2024 was the most severe and most widespread yet recorded - surpassing 1998, 2002, 2016, 2017, 2020 & 2022.
The overall mortality rate this year will exceed the 30% loss in 2016. www.nature.com/articles/s41...
The overall mortality rate this year will exceed the 30% loss in 2016. www.nature.com/articles/s41...
Reposted by Mike Hansen
In a new post over at The Climate Brink I take an in-depth look at how "weird" the recent El Nino event was. Compared to prior strong events, global surface temperatures rose earlier and high temperatures have persisted for longer: www.theclimatebrink....
How unusual is current post-El Niño warmth?
Global temperatures rose earlier and have potentially remained elevated longer than in any prior El Niño event since at least 1940.
www.theclimatebrink.com
November 25, 2024 at 5:24 PM
In a new post over at The Climate Brink I take an in-depth look at how "weird" the recent El Nino event was. Compared to prior strong events, global surface temperatures rose earlier and high temperatures have persisted for longer: www.theclimatebrink....
Reposted by Mike Hansen
2024 will almost certainly set another new record for the highest global annual average temperature since instrumental measurements began.
That trend is brutal.
From @berkeleyearth.bsky.social: berkeleyearth.org/october-2024...
That trend is brutal.
From @berkeleyearth.bsky.social: berkeleyearth.org/october-2024...
November 22, 2024 at 11:09 AM
2024 will almost certainly set another new record for the highest global annual average temperature since instrumental measurements began.
That trend is brutal.
From @berkeleyearth.bsky.social: berkeleyearth.org/october-2024...
That trend is brutal.
From @berkeleyearth.bsky.social: berkeleyearth.org/october-2024...
Reposted by Mike Hansen
Following up on our opinion piece in the NYTimes this week - what are we really talking about?
November 17, 2024 at 11:27 PM
Following up on our opinion piece in the NYTimes this week - what are we really talking about?
Reposted by Mike Hansen
Our sister website The Driven is now up and running on Bluesky. Give them a follow to keep up to date with all things #EVs 🚗⚡
Hi Bluesky! Happy to be here. Please check out our website and subscribe to our daily newsletter. It's free and includes a whole bunch of great stories on all things #electricvehicles. thedriven.io
The Driven
The Driven is Australia’s most-read electric vehicle news site, covering the latest EV stories both in Australia and overseas.
thedriven.io
November 17, 2024 at 11:54 PM
Our sister website The Driven is now up and running on Bluesky. Give them a follow to keep up to date with all things #EVs 🚗⚡
Reposted by Mike Hansen
If new rules enable cars without human controls, that would directly benefit Elon Musk.
Trump Team Said to Want to Ease US Rules for Self-Driving Cars
Members of President-elect Donald Trump’s transition team have told advisers they plan to make a federal framework for fully self-driving vehicles one of the Transportation Department’s priorities, ac...
www.bloomberg.com
November 17, 2024 at 8:53 PM
If new rules enable cars without human controls, that would directly benefit Elon Musk.
Reposted by Mike Hansen
Many people don’t realise that Australia is a petrostate, striving to increase exports of fossil fuels for as long as possible.
The Great Barrier Reef is a superhighway for shipping coal and fossil gas.
The Great Barrier Reef is a superhighway for shipping coal and fossil gas.
November 16, 2024 at 9:34 PM
Many people don’t realise that Australia is a petrostate, striving to increase exports of fossil fuels for as long as possible.
The Great Barrier Reef is a superhighway for shipping coal and fossil gas.
The Great Barrier Reef is a superhighway for shipping coal and fossil gas.