RadReduction (Larry Edwards)
@radreduction.bsky.social
290 followers 520 following 540 posts
Follow me about radical reductions of climate harming emissions (especially from flying, cruise). Interests: climate, policy, overtourism. My location: Under the global cloud of GHGs. ResearchGate: https://www.researchgate.net/profile/Larry-Edwar
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radreduction.bsky.social
See 👆 — Conclusion on aviation: "Rather than gambling on future breakthroughs that may never materialise, policymakers should pursue immediate demand-reduction strategies & support a just transition …"

@kevinclimate.bsky.social @stucap.bsky.social @cityatlas.bsky.social @parkewilde.bsky.social
radreduction.bsky.social
Just published, in Journal of the Academy of Social Sciences:

"Flight from reality: sustainable aviation, Jet Zero, and the technofix"

Open access:
www.tandfonline.com/doi/full/10....

Screen shot:
Flight from reality: sustainable aviation, Jet Zero, and the 
technofix

Gareth Dale, Josh Moos and  Alistair Bernal Holmes

ABSTRACT  

This paper argues that rising aviation emissions, which are disproportionally driven by the wealthy, pose a serious threat to climate  goals. Using the UK’s Jet Zero strategy as a case study, it explores how policymakers and industry promote speculative technologies—efficiency gains, electric and hydrogen aircraft, sustainable aviation fuels, carbon capture, and offsetting—to justify continued aviation growth.  We critically assess these claims: electric aircraft are limited to short routes; hydrogen faces major storage and infrastructure barriers, and green hydrogen remains scarce. SAFs, often derived from land-intensive crops, risk deforestation, biodiversity loss, and higher net emissions.  Second generation SAFs, such as used cooking oil, are scarce, and power-to-liquid is speculative and prohibitively expensive.  Carbon capture is unproven at scale, and offsetting enables airlines to claim reductions without cutting actual emissions. These “solutions” align with a political agenda that prioritises economic growth and airport expansion.  We argue that this techno-optimism delays real action.  Rather than gambling on future breakthroughs that may never materialise, policymakers should pursue immediate demand-reduction strategies and support a just transition—ending frequent-flyer incentives, shifting short-haul flights to rail, removing aviation fuel subsidies, and retraining workers for low-carbon sectors.
Reposted by RadReduction (Larry Edwards)
loveisphere.bsky.social
“Let’s be clear. Taking a cruise is one of the most polluting ways to take a holiday. Just when more and more people are concerned about the climate and want to reduce their own emissions, MSC Cruises is trying to get customers on board with peace of mind.” #greenwashing #yyj #climatecrisis
Reposted by RadReduction (Larry Edwards)
radreduction.bsky.social
As well as his more recent work on climate sensitivity. See here: www.columbia.edu/~jeh1/. He finds it to be higher than what has conventionally been determined (by e.g. IPCC).

If you aren't already, it would be good to follow @leonsimons.bsky.social.
Dr. James E. Hansen
www.columbia.edu
radreduction.bsky.social
That's why I addressed only your question about PPM of CO2. "Simplifying here by looking only at CO2 and no feedbacks."

The climate system is complex, with lots of heat stored in the ocean, and the effects of changes in aerosols, clouds and surface albedo involved, for example.
Reposted by RadReduction (Larry Edwards)
democracyforward.org
We’d also love to know what happened to the $50,000 Tom Homan allegedly took from FBI agents.

Luckily, we’ve sued for the receipts.
radreduction.bsky.social
That level is whatever the peak PPM level will happen to be. (Simplifying here by looking only at CO2 and no feedbacks.)

When the PPM flat-lines, the temperature stays the same. From that point, removal of CO2 by natural or other means reduces the temperature.

Keep it in the ground is the start.
radreduction.bsky.social
All current approaches to ending aviation's contribution to climate change are off track. Offsets & SAF won't do it. Taxes & levies are minimally effective.

The real, direct solution is to regulate the flow of kerosene, ratcheting it down to reach zero in 10-15 years.

Reduce demand to fit that.
radreduction.bsky.social
"So more is not always equal to more. Sometimes more is equal to less – and less is more," Frankovic said.

/4 (fin)
radreduction.bsky.social
"'I see the city of Dubrovnik in three years' time with happy citizens, good tourism numbers and as a living city,' said Frankovic. 'Everyone will be happy – but it will take some hard decisions.'" /3
radreduction.bsky.social
Mayor "Frankovic's moves mark a rare turning point in mass tourism: a city rejecting tourism dollars for the sake of its citizens. In an era when most destinations chase growth at any cost, Dubrovnik is making the opposite bet: that quality, not quantity, will define its future." /2
radreduction.bsky.social
"Mass tourism is not a win-win," says Dubrovnik's mayor Mato Frankovic. "At the beginning you feel like you are winning, but at the end, actually you are losing the quality of service and quality of life. It is just a losing game. So we overturned everything." /1

www.bbc.com/travel/artic...
Disneyland to living city: Dubrovnik's bold fight against overtourism
Capping visitor numbers, turning away cruise money and even outlawing wheely suitcases: Dubrovnik is making radical moves to reverse its "Disneyfication".
www.bbc.com
Reposted by RadReduction (Larry Edwards)
joffirphd.bsky.social
This was literally my exact comment to my partner (substituting "they're" for "we're," & "them" for "us") after watching the news last night - b/c that was literally the argument Trump was making, on the news.

These are training exercises designed to get the Nat. Guard used to fighting civilians.
Adam Douglas Thompson cartoon of a military officer saying to troops in riot gear & carrying rifles, "We're being deployed because of the protests about us being deployed."
Reposted by RadReduction (Larry Edwards)
Reposted by RadReduction (Larry Edwards)
democracyforward.org
It’s the first day of the Supreme Court’s new term. Do you know what’s at stake?

Read our People’s Guide to the 2025-2026 Supreme Court Term to learn about upcoming cases on:

📣 Free speech
👨‍👨‍👧‍👧 Rights of LGBTQI+ and immigrant communities
🗳️ Election integrity
🇺🇸 Checks on presidential power
The People’s Guide to the U.S. Supreme Court: 2025-2026 - Democracy Forward
As the Supreme Court begins its 2025–2026 term, this People’s Guide unpacks the key cases to help the public understand what’s at stake and why it matters.
democracyforward.org
Reposted by RadReduction (Larry Edwards)
leahstokes.bsky.social
Governor Newsom has a bill on his desk to hold utilities accountable, and get them to stop passing along their dark money campaigns to everyday Californians.

Is he going to side with utilities, or side with the public and help lower electricity rates?
energyandpolicy.org/california-l...
California passes bill curbing utilities use of ratepayer money for political spending
State lawmakers last week made California the seventh state to pass a bill limiting investor-owned utilities from using customer money to pay for political and lobbying costs.
energyandpolicy.org
Reposted by RadReduction (Larry Edwards)
torstenluetten.bsky.social
Greta once again shows true leadership.

As opposed to our political 'leaders' complicit in genocide.
bladeofthes.bsky.social
Greta Thunberg has just been released and she is back on the warpath, exactly like our leaders should be.

Israel will never silence her or the billions who oppose them.
Reposted by RadReduction (Larry Edwards)
radreduction.bsky.social
A good first step. I hope it will inspire other provinces, states and ultimately national governments and regions (the E.U.) to follow suit. That would make it fully effective.

@lloydalter.bsky.social
patrickcanning.bsky.social
Wow, this is the first I've heard of this! What great news from Quebec - tackling designed obsolescence.

There was some talk in climate circles in 2018 about tackling this, but it fell to the wayside as more urgent crises came up.
Quebec durable goods law comes into effect | Globalnews.ca
Quebec measures targeting retailers when it comes to sustainability of goods and planned obsolescence of products comes into effect today.
globalnews.ca
radreduction.bsky.social
"The research is another sign that climate heating caused mainly by fossil fuel pollution is pushing the climate toward dangerous tipping points, out of the 'safe operating space' for humans, said lead author Beatriz Arellano-Nava, a University of Exeter climate researcher.:
rahmstorf.bsky.social
“Bivalve records are really amazing. They are like the tree rings of the sea. They offer a continuous, annually resolved record of ocean conditions.”
New study finds #AMOC destabilization since 1950 "suggesting that the region is moving toward a tipping point."🌊
insideclimatenews.org/news/0310202...
New Study Shows Disruption of Ocean Currents That Stabilize the Global Climate - Inside Climate News
Clam shell growth rings contain clues about the looming potential for a tipping point into climate collapse.
insideclimatenews.org
Reposted by RadReduction (Larry Edwards)
democracyforward.org
UPDATE: We’ve filed for a temporary restraining order in our case to block the Trump-Vance admin from unlawfully firing federal workers during the government shutdown.

We refuse to let President Trump treat civil servants and their livelihoods as political tools.
democracyforward.org
We’re suing the Trump-Vance administration for threatening to conduct mass firings of federal employees if the government shuts down tonight.

Using people’s livelihoods as a bargaining chip is both cruel and illegal. That’s why we’ve joined forces with unions to protect these vital jobs.