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Papa s Pilar Rum Fishing Report (8/13/21) | BIG 105 9 | The Paul Castronovo Show

Papa s Pilar Rum Fishing Report (8/13/21) | BIG 105 9 | The Paul Castronovo Show
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The National Parks Reservation System Is Off to a Bumpy Start

The National Parks Reservation System Is Off to a Bumpy Start
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Ancient atmospheric oxygen sleuthing with ocean chromium

Credits: Photo: Kelsy Cain Next image Found in jewelry, car parts, pigments, and industrial chemical reactions, the metal chromium and its compounds are often employed for their color, finish, and anti-corrosive and catalytic properties. Currently, geoscientists and paleoceanographers from MIT and the Woods Hole Oceanographic Institution (WHOI) are looking to add another use to that list: as a way to examine chemical shifts in ancient Earth’s oceans and atmosphere that are preserved in the seafloor’s paleorecord. More specifically, they want to reconstruct rising atmospheric oxygen levels, which began around 2.4 billion years ago, and their effect on the seas. Since biology and the environment are intimately intertwined, this information could help illuminate how the Earth’s life and climate evolved.

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