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Sentinels of Ocean Acidification Impacts Survived Earth’s Last Mass Extinction – HeritageDaily

Two groups of tiny, delicate marine organisms, sea butterflies and sea angels, were found to be surprisingly resilient-having survived dramatic global climate change and Earth’s most recent mass extinction event 66 million years ago. – HeritageDaily – Archaeo…

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Two groups of tiny, delicate marine organisms, sea butterflies and sea angels, were found to be surprisingly resilient–having survived dramatic global climate change and Earth’s most recent mass extinction event 66 million years ago.
Sea butterflies and sea angels are pteropods, abundant, floating snails that spend their entire lives in the open ocean. A remarkable example of adaptation to life in the open ocean, these mesmerizing animals can have thin shells and a snail foot transformed into t…

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Galactic Archaeology – Space Ref

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No one has yet found the first stars.
They’re hypothesized to have formed about 100 million years after the Big Bang out of universal darkness from the primordial gases of hydrogen, helium, and trace light metals. These gases cooled, collapsed, and ignited into stars up to 1,000 times more massive than our sun. The bigger the star, the faster they burn out. The first stars probably only lived a few million years, a drop in the bucket of the age of the universe, at about 13.8 billion years. They’re…

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2020 Antarctic ozone hole ‘one of the largest and deepest in recent years’ – CNET

The hole in the ozone layer keeps coming back to haunt us.

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The scale on the right shows Dobson units, a measurement of the amount of ozone in the atmosphere. The open area over most of Antarctica indicates the size of the 2020 ozone hole.
DLR Earth Observation Center
The ozone layer is necessary to helping life survive on Earth. It acts like atmospheric sunscreen, which is why scientists keep a close eye on an ozone hole that appears seasonally over Antarctica. 
This year’s hole “is one of the largest and deepest in recent years,” the European Space Agency…

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Upcycling polyethylene plastic waste into valuable molecules – Science Daily

Researchers develop a one-pot, low temperature catalytic method to turn polyethylene polymers into alkylaromatic molecules.

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When we started using plastics about 70 years ago, not much thought — if any — was given to the implications of their lifespan and the fact that they can take centuries to decompose. Consequently, as plastics have diversified and become easier to manufacture, the planet is now straddling some 8.3 billion tons of the stuff — almost every bit of plastic ever produced — without enough technology or incentives to shrink that growing pile. Plastic is cheaper and easier to produce and throw away than…

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