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Russian Ministry of Defense: 37 Ukrainian drones destroyed in 4 hours over regions of Russia and the Black Sea.
Sheikh Qassem: Our supporters make up more than half of Lebanon's population, and all of these people are united under the banner of protecting Lebanon, its Resistance, its people, and its integrity.
Sheikh Qassem: There will be no phased handing in of our arms. [The Israelis] must first enact the agreement before we start talking about a defensive strategy.
Sheikh Qassem: Be brave in the face of foreign pressures, and we will be by your side in this stance.
Sheikh Qassem: Stripping us of our arms is like stripping us of our very soul, and this will prompt us to show them our might.
Sheikh Qassem: We will not abandon our arms, for they gave us dignity; we will not abandon our arms, for they protect us against our enemy.
Sheikh Qassem: The US efforts we are seeing are aimed at sabotaging Lebanon and constitute a call for sedition.
Sheikh Qassem: If you truly want to establish sovereignty and work for Lebanon’s interests, then stop the aggression.
Sheikh Qassem: The United States, which is meddling in Lebanon, is not trustworthy but rather poses a danger to it.
Sheikh Qassem: The United States is preventing the weapons that protect the homeland.

'For centuries to come' is the impact of melting Antarctic on oceans

  • By Al Mayadeen English
  • Source: Agencies
  • 30 Mar 2023 09:53
2 Min Read

The "overturning circulation" of waters in the deepest reaches of the oceans would slow down by 40% by 2050 in a high-emissions scenario, as per a new study.

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  • A foraging Emperor penguin preens on snow-covered sea ice around the base of the active volcano Mount Erebus, near McMurdo Station, the largest U.S. Science base in Antarctica, December 9, 2006. (Reuters)
    A foraging Emperor penguin preens on snow-covered sea ice around the base of the active volcano Mount Erebus, near McMurdo Station, the largest US Science base in Antarctica, December 9, 2006. (Reuters)

Scientists warned that the rapidly melting Antarctic ice could drastically reduce deep-water currents, which would have long-term effects on the distribution of fresh water, oxygen, and nutrients necessary for life.

New modeling highlights that if global carbon emissions continue to be high, faster Antarctic ice melts will result in a "significant slowdown" of water circulation in the ocean depths, as per a report published in Nature on Wednesday.

The "overturning circulation" of waters in the deepest reaches of the oceans would slow down by 40% by 2050 in a high-emissions scenario, according to the study, which cautioned of impacts that would last "for centuries to come."

If the model holds true, the deep ocean current will be "on a trajectory that looks headed towards collapse," said University of New South Wales (UNSW) climate professor Matthew England, who coordinated the study.

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Each year, scientists estimate that trillions of tonnes of cold, extremely salty, and oxygen-rich water sink around Antarctica, causing a deep-water current to flow northward into the Indian, Pacific, and Atlantic seas.

Yet, as more ice melts, the density and salinity of the Antarctic waters decrease, delaying the deep-water circulation, which has an impact on the climate, sea level, and marine ecosystems.

"If the oceans had lungs, this would be one of them," England said.

And if the oceans become stagnant below 4,000 meters, "this would trap nutrients in the deep ocean, reducing the nutrients available to support marine life near the ocean surface," he stressed.

It is worth noting that the study team comprised co-authors from the Australian National University and CSIRO, Australia's national research agency, as well as lead author Qian Li of the Massachusetts Institute of Technology.

Read next: Antarctica’s Emperor penguins could go extinct by 2100

  • oceans
  • Climate change
  • Antarctic
  • water current

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