relianceschool

joined 1 week ago
[–] relianceschool@lemmy.world 3 points 8 hours ago* (last edited 8 hours ago)

Carbon Brief published a great article on this subject: Q&A: What does deep-sea mining mean for climate change and biodiversity loss? Some takeaways on its impacts:

  • A 2020 study stated that “scientific misconceptions are likely leading to miscalculations of the environmental impacts of deep-seabed mining”. It added that the disturbance from a single mining operation “could easily be” up to four times larger than its direct mining footprint, affecting up to 32,000 square kilometres over 20 years.
  • The potential cost of restoring damage to deep-sea ecosystems could be “astronomical”, according to a report by Planet Tracker, a not-for-profit thinktank.
  • A 2022 UN Environment Programme Finance Initiative (UNEPFI) briefing paper saw “no foreseeable way” in which the financing of deep-sea mining could be consistent with a sustainable blue economy. It called on investors to instead “focus efforts” on reducing “the environmental footprint of terrestrial mining” and “support the transition toward a circular economy” to make current mineral demand “obsolete”.
  • A 2023 study found that deep-sea mining “is unlikely to resolve the sustainability challenges in the conventional mining sector” and any environmental impacts avoided on land “would be at the expense of economic benefits in mining-reliant” developing countries.

Deep-sea mining can also harm marine organisms that are crucial for climate regulation – those that store carbon in the seabed or produce oxygen in the deep ocean.

  • A 2024 study found that polymetallic nodules may be responsible for producing oxygen at the seafloor in the CCZ. The authors said that this oxygen production could be critical for sustaining life at the seafloor.
  • A 2025 Nature study provided a rare insight into some of the lasting impacts that mining can cause. It focused on a 1979 mining experiment in the Clarion-Clipperton Zone. During the 1979 test, a mining machine drove grooves into the seafloor. These furrows, which were almost one metre deep and up to three metres wide, looked much the same after 44 years. These impacts are consistent with findings in other surveys of mined test sites.

Seafloor mining vehicles emit toxic plumes of sediments that can impact marine life in the midwaters, from reducing their ability to communicate and causing physiological stress, to forcing species to migrate. Species that could be impacted include sharks, dolphins, whales, squid, fish, shrimp, copepods and jellyfish.

 

The White House is weighing an executive order that would fast-track permitting for deep-sea mining in international waters and let mining companies bypass a United Nations-backed review process, according to two sources with direct knowledge of the deliberations.

If signed, the order would mark U.S. President Donald Trump's latest attempt to tap international deposits of nickel, copper and other critical minerals used widely across the economy after recent efforts in Greenland and Ukraine. Trump earlier this month also invoked emergency powers to boost domestic minerals production.

The International Seabed Authority - created by the United Nations Convention on the Law of the Sea, which the U.S. has not ratified - has for years been considering standards for deep-sea mining in international waters, although it has yet to formalize them due to unresolved differences over acceptable levels of dust, noise and other factors from the practice.

Trump's deep-sea mining order is likely to stipulate that the U.S. aims to exercise its rights to extract critical minerals on the ocean's floor and let miners bypass the ISA and seek permitting through the U.S. Department of Commerce's National Oceanic and Atmospheric Administration's mining code. The plans are under discussion and could change before Trump signs the order, the sources said.

https://archive.ph/5w0z0

 

More than 1,900 members of the National Academies of Sciences, Engineering and Medicine signed an open letter warning Americans about the “danger” of the Trump administration’s attacks on science. The letter comes amid the administration’s relentless assault on US scientific institutions which has included threats to private universities, federal grant cancelations and ideological funding reviews, mass government layoffs, resignations and censorship.

“We see real danger in this moment,” the letter states. “We hold diverse political beliefs, but we are united as researchers in wanting to protect independent scientific inquiry. We are sending this SOS to sound a clear warning: the nation’s scientific enterprise is being decimated.”

“The administration is slashing funding for scientific agencies, terminating grants to scientists, defunding their laboratories, and hampering international scientific collaboration,” the letter states. “The funding cuts are forcing institutions to pause research (including studies of new disease treatments), dismiss faculty, and stop enrolling graduate students – the pipeline for the next generation’s scientists.”

The letter continued: “The quest for truth – the mission of science – requires that scientists freely explore new questions and report their findings honestly, independent of special interests. The administration is engaging in censorship, destroying this independence. It is using executive orders and financial threats to manipulate which studies are funded or published, how results are reported, and which data and research findings the public can access. The administration is blocking research on topics it finds objectionable, such as climate change, or that yields results it does not like, on topics ranging from vaccine safety to economic trends.”

Scientific institutions have seen major upheaval since the beginning of this Trump administration and there are fears that the cuts are in preparation for privatization.

https://archive.ph/YM3g1

 

The world is fast approaching temperature levels where insurers will no longer be able to offer cover for many climate risks, said Günther Thallinger, on the board of Allianz SE, one of the world’s biggest insurance companies.

The argument set out by Thallinger in a LinkedIn post begins with the increasingly severe damage being caused by the climate crisis: “Heat and water destroy capital. Flooded homes lose value. Overheated cities become uninhabitable. Entire asset classes are degrading in real time.”

“We are fast approaching temperature levels – 1.5C, 2C, 3C – where insurers will no longer be able to offer coverage for many of these risks,” he said. “The math breaks down: the premiums required exceed what people or companies can pay. This is already happening. Entire regions are becoming uninsurable.”

“This applies not only to housing, but to infrastructure, transportation, agriculture, and industry,” he said. “The economic value of entire regions – coastal, arid, wildfire-prone – will begin to vanish from financial ledgers. Markets will reprice, rapidly and brutally. This is what a climate-driven market failure looks like.”

https://archive.ph/gc27x

 

One of the most extended U.S. flood episodes of recent years is on tap to begin late Wednesday, April 3, and stretch into the following weekend. The NWS Weather Prediction Center has issued four consecutive days of moderate flood risk for Wednesday through early Sunday.

The threat of tornadoes, destructive winds, and damaging hail will peak from Wednesday afternoon, April 2, into early Thursday. Then comes the deluge — perhaps a foot or more of rain, adding up to what could be some of the heaviest three- or four-day totals ever recorded in what is normally a moist region notorious for flooding.

 

According to the U.S. Department of Transportation, approximately one-third of the nation’s residents don’t have driver’s licenses. In her 2024 book “When Driving is Not an Option: Steering Away from Car Dependency,” disability advocate Anna Zivarts argues that not only is America’s car-centric infrastructure harmful to the climate, it also fails to meet the everyday needs of many Americans.

[–] relianceschool@lemmy.world 3 points 1 week ago

We all have different roles to play. I'm here for the fight, but I have a few friends who are fleeing to Europe right now. I can understand both choices.

[–] relianceschool@lemmy.world 2 points 1 week ago

Thank you for sharing and summarizing! A few more takeaways relating to climate change:

  • Emissions growth (0.8%) is lower than GDP growth (3.2%) for 2025, which could be seen as evidence of decoupling. Growth in electricity demand (4.3%) outpaced GDP.
  • Renewables made up nearly 40% of new energy production, but coal, oil and natural gas use has continued to increase to record highs.
  • Total & per-capita emissions are decreasing in the US & EU, but increasing in China and India.