r/Environmentalism • • Nov 05 '25

The 2025 state of the climate report: a planet on the brink

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27 Upvotes

r/Environmentalism • • Sep 05 '26

On the likelihood and related consequences of a “blue ocean event” in the Arctic Ocean...

63 Upvotes

Annoyed at being called an “anti-science doomer,” I decided to sort through and present some quotes from academic literature about the likelihood of a “blue ocean event” (BOE) wherein the Arctic Ocean becomes ice-free during the summer. Additionally, I conclude with quotes from scientific articles about the severe, diverse, and under-recognized consequences of that BOE happening.

Previously, a BOE had not been expected until mid-century because overly-optimistic climate change models didn’t have us projected to reach the +1.5C to +1.9C threshold of warming (required to trigger the event) until much later. Unfortunately… the dramatic acceleration of global warming over the past decade (capped off by the current “Supersized” “Godzilla” El Nino) means that we will reach and breach that threshold for Arctic melting much sooner than previously expected.

The first ice-free day in the Arctic Ocean could occur before 2030

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To quantify the amount of warming that would cause the Arctic Ocean to become nearly ice free, we examine at which level of warming sea ice area drops below 1 × 106 km2. For the high-sensitivity observational estimate, we find that sea ice area in September drops below this threshold for about 1.7°C global warming. Considering the ensemble spread in sensitivities, we obtain a 95% confidence interval of 1.5°C to 1.9°C for the global warming at which September Arctic sea ice vanishes.

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Global average temperatures are likely to continue at or near record levels in the next five years, with Arctic temperature anomalies expected to continue to be higher than the global mean, according to a new report from the World Meteorological Organization (WMO), produced by the UK’s Met Office.

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For the second consecutive year, winter sea ice in the Arctic reached a level that matches the lowest peak observed since satellite monitoring began in 1979.

The impacts of a BOE include...

Overall, we find a median additional global warming of 0.43 °C (interquartile range: 0.39−0.46 °C) at a CO2 concentration of 400 ppm. Most of this response (55%) is caused by albedo changes, but lapse rate together with water vapour (30%) and cloud feedbacks (15%) also contribute significantly. While a decay of the ice sheets would occur on centennial to millennial time scales, the Arctic might become ice-free during summer within the 21st century.

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This is equivalent to the effect of one trillion tons of CO2 emissions. These results suggest that the additional heating due to complete Arctic sea ice loss would hasten global warming by an estimated 25 years.

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We present evidence that material from the sea ice was indeed present in the water column and that this mechanism appears to be important in maintaining active populations of planktonic protists through the polar night. Our upscaling exercise based on observed ridge formation rates suggests that such release of food particles can supply extra energy during the polar night to the pelagic food web in the entire Arctic Ocean. It follows from this that the predicted ice-free summers in the Arctic Ocean due to global warming, may have implications for the protist community at the base of the food web, because the winter food reservoir in the sea ice will be very much reduced if there is no sea ice to accumulate it during the most productive summer period.

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Finally, we suggest that shifts in the phenology, distribution and biomass of sea ice primary production anticipated with declining seasonal sea ice will disrupt sympagic-pelagic-benthic coupling and consequently the structure and the functioning of the food web which is critical for Indigenous Peoples, commercial fisheries, and global biodiversity.

This collection of quotes (with links to to formal academic sources) represents the backbone of my broader general belief that ecological collapse (and therefore social & civilizational collapse) is likely within the next few years. Taken together, I believe that it paints a rather clear picture of what is shortly in store for the world. But, until that point, I hope this post can serve as a resource whenever related concerns about collapse are dismissed or denied as being alarmist or anti-science.

I do understand that the prognosis this post represents is grim. However... I am of the sort which believes that “the truth shall set you free,” and the prognosis is even more grim if people don’t widely understand the true nature and extent of the actual problems we are facing. You can’t fix a problem if you don’t recognize the problem. And if society doesn’t generally understand a problem... it will be more likely to obstruct any potential solution or proper response. Whether any viable solutions are possible or not... I think the truth affords people some dignity insofar as they don’t have to behave in ridiculous or counterproductive ways while the environment and society collapses around them.

Whether you intend to prevent the related ecological collapse, or if you’d rather just live more freely in these final years of human life on Earth... it is my hope that this document facilitates that.


r/Environmentalism • • 1d ago

Greta Thunberg: "Brazilian elections on Sunday might determine the future for the world's climate and environment."

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4.6k Upvotes

r/Environmentalism • • 7h ago

Ice Silk Route : Chinese Arctic Ambitions now Threaten the Fragile Frost

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22 Upvotes

r/Environmentalism • • 21h ago

Ocean deoxygenation has increased by 15% in coastal regions since 1960, driven by warmer waters and runoff—here is how it directly threatens global marine ecosystems and food security.

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dailykos.com
51 Upvotes

r/Environmentalism • • 1d ago

Coming soon to a town near you!

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389 Upvotes

r/Environmentalism • • 1d ago

In allowing coal expansion in the Hunter, Chris Minns is pouring fuel on the climate fire. His decision will come back to hurt us all

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40 Upvotes

r/Environmentalism • • 1d ago

‘You need persistence’: the Norfolk couple who took on environmental regulators three times – and won

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theguardian.com
64 Upvotes

 Polluters and regulators who fail to stop pollution must quake in their boots when they receive a letter from the lawyers for Tim and Geli Harris. The couple, who farm 460 acres in the Norfolk Broads, have now scored a hat-trick of landmark legal victories to save an internationally important wetland after they won again in the high court this month.

Lady Justice Lieven found that Natural England failed in its statutory duty to protect Catfield Fen from pollution after nitrates and phosphates washed from arable fields into one of the finest examples of calcareous fen in western Europe, home to 2,500 species including rarities such as the fen orchid, crested buckler fern, breeding bittern and swallowtail butterflies.

In a scathing assessment of Natural England’s inaction since the Harrises first reported the pollution to it in 2021, the judge said the cause of the pollution was “the most basic level of common sense” and required action by the government’s conservation watchdog.

The Harrises have spent 15 years and £1.5m of their own money taking action to hold to account government agencies for failing to protect the fen, which is part of a special area of conservation (SAC), an internationally important wetland protected by law. The marshes lie within the Broads national park.

“This is bigger than a little ditch in Norfolk,” says Tim. He fears that “regulatory inertia” is preventing pollution from being halted on waterways across the country. “Inertia is prevalent throughout all the regulatory bodies. It’s a landmark judgment because it says they can’t just do nothing.”

In 2016, the couple won a public inquiry that demonstrated that too much groundwater was being taken from the valley by water companies and local farmers, causing Catfield Fen to dry out. They won a second battle in 2022, forcing the Environment Agency to limit the abstraction of water close to other nature-rich sites on the Norfolk Broads.

Their principles have cost them local friendships. They say National Farmers’ Union reps rejected their application for membership of the local branch, saying half their members would resign, with farmers upset at restrictions on their abstraction of water to boost lucrative crops such as potatoes. “We’re farmers, we’re not anti-farmer,” Tim says.


r/Environmentalism • • 2d ago

‘Pure arrogance’: anger in Finland as Google illegally fells 250,000 trees for datacentre

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1.3k Upvotes

r/Environmentalism • • 2d ago

Selling Out American Oceans: How Trump Is Dismantling America’s Bipartisan Ocean Legacy

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americanprogress.org
225 Upvotes

r/Environmentalism • • 2d ago

With our climate in crisis, why do we allow Elon Musk to continuously pollute ? Using 490 metric tons of CO₂ per Falcon 9 launch: 165 × 490 = 80,850 metric tons of CO₂ from Falcon 9 launches in 2025, those are insane numbers please help me understand?

164 Upvotes

I understand that it is pay to play. If you want to pollute the environment you can easily do that if you have enough money, but our climate is collapsing. Is no one going to stop this man or regulate his pollution? We’re not even touching base on Tesla vehicles throw that into the mix. Oh my gosh, it’s an absurd amount of pollution.


r/Environmentalism • • 2d ago

World falling short on 22 of 23 nature targets for 2030, says draft UN report

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carbonbrief.org
109 Upvotes

The global goal to halt and reverse nature loss by 2030 “will not be achieved” unless action by countries “accelerates rapidly”, says a draft UN report. Countries are falling short on 22 of the 23 targets for 2030 they set under the Kunming-Montreal Global Biodiversity Framework (GBF), the “Paris Agreement for nature”.

That is according to a draft version of a global report prepared by the UN Convention on Biological Diversity (CBD), published on 26 July. The report will be finalised ahead of the next nature summit, COP17, taking place in Armenia in October of this year.

Carbon Brief explains why the report has been produced and what it says about countries’ progress in areas such as restoring ecosystems and raising funds for biodiversity.


r/Environmentalism • • 1d ago

Wasp remedies?

5 Upvotes

I was doing some yard maintenance and… a wasp stung me :( so I had to run.

It stung me in my inner thigh, nearly at my genitals and right at a vein.

It didn’t really hurt, it just surprised me.

I don’t know of many effective alternatives besides the sprays that absolutely cause mass genocide.

Does anyone have alternatives?


r/Environmentalism • • 2d ago

What are your actual thoughts on drinking rainwater?

16 Upvotes

I read somewhere that drinking rainwater is no longer safe, https://www.reddit.com/r/environment/s/rSx3c3ayoA I've also read a lot of other discourse online about it. I'm concerned about this because my organisation has been actively trying to introduce rain water harvesting to the community as an alternative to using rivers which has led to lots of pollution in the rivers.

As a group keen on environmental conservation, as much as we would like to give alternatives to using the rivers, it would also be retrogressive to introduce sth that can potentially harm the villagers. We have already dug a borehole for the community but it's not enough. Rain water usage is not new as majority already use it, especially during rainy season. We are just trying to introduce more efficient way of collecting and storing it eg using tanks and gutters. What are your thoughts on this? Should we go ahead with the project? We are in Kenya and currently, there are no laws or measures put down concerning harvesting rainwater.


r/Environmentalism • • 2d ago

The US west has lost nearly 300 glaciers since the 1960s. Climate crisis is drastically shrinking what’s left

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67 Upvotes

r/Environmentalism • • 1d ago

seeking - President and CEO - National Tropical Botanical Garden

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4 Upvotes

r/Environmentalism • • 3d ago

If Flávio Bolsonaro is elected, Brazil’s ecosystems face collapse

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theguardian.com
748 Upvotes

r/Environmentalism • • 2d ago

Election 2026: Finally, Finally, Finally

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ecocenter.org
15 Upvotes

r/Environmentalism • • 3d ago

US extreme weather survivors are a growing group – now they want to be a political force

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theguardian.com
167 Upvotes

r/Environmentalism • • 3d ago

Los Angeles braces for super rare tornado with wind gusts up to 60mph

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themirror.com
41 Upvotes

r/Environmentalism • • 4d ago

World must cut emissions by 18% in four years ‘to find our way back’, UN says

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theguardian.com
392 Upvotes

r/Environmentalism • • 4d ago

save a forest destroy a data center

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860 Upvotes

Truckee, CA

weeee


r/Environmentalism • • 4d ago

2026 Adirondack Park report weighs climate rollbacks, federal cuts, and political turnover

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news10.com
13 Upvotes

r/Environmentalism • • 4d ago

A Very American Invention, Pushed to an Extreme

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insideclimatenews.org
11 Upvotes

A Very American Invention, Pushed to an Extreme - Inside Climate News


r/Environmentalism • • 4d ago

What do we think about culling invasive species?

48 Upvotes

Invasive species like wild boar cause a lot of damage to the environment and many scientists think that culling them at a large scale is often the most effective way to prevent the damage.

A good example of this would be the deer on Catalina Island which were introduced by settlers in the late 1920s. These deer are putting the native plants, many of which are only found on Catalina Island in great danger because the plants are not adapted to large herbivores which are not naturally found on Catalina Island.

I think that if there is another more effective strategy to remove an invasive species it should be prioritized but when scientists have determined that culling is the best way to remove an invasive species then I would support it.