oxygen

Ocean Dead Zones Multiplying Rapidly, Threatening Food Source For Hundreds Of Millions

An ocean dead zone is an area where there is not enough oxygen dissolved in the water to allow aquatic creatures to breath. To put it in perspective, imagine a person locked in a sealed chamber in which the level of oxygen is slowly but steadily decreased until they lie gasping for breath until they […]

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In First, NASA Probe Detects 'Alien Matter' Entering Our Solar System (VIDEO)

Two hundred thousand miles (322,000 km) above the earth, the Interstellar Boundary Explorer (IBEX) drifts in space, quietly “sniffing” the interstellar wind that continuously streams into our solar system from far beyond. The probe is designed to detect minute traces of matter (electrically neutral atoms and molecules, know as interstellar material) that originated in supernovae

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Oxygen-Free Oceans Wrought Changes on Early Earth

Geologists at the University of California, Riverside, have discovered chemical evidence that indicates Earth’s ancient oceans were not only oxygen-free, but also contained large quantities of hydrogen sulphide in some areas. β€œWe are the first to show that ample hydrogen sulfide in the ocean was possible this early in Earth’s history,” said Timothy Lyons, a

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An Ice-Free Arctic Ocean Will Not Absorb More CO2

An international team of climate and ocean scientists, led by Wei-Jun Cai (U of Georgia, Athens), predicts that the “Arctic Ocean basin will not become a large atmospheric CO2 sink under ice-free conditions.” Using data from a 2008 high-resolution survey of the entire Canada Basin, the team explains the complex “air-sea flux” and other reasons why sea-surface CO2 continues to increase.

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World's Marine Plankton in Peril – 40% Decline Since 1950

Phytoplankton–tiny, marine plants that formthe basis of our oceans’ food chain–absorb and sequester large amounts of CO2 from the atmosphere and generate half of the world’s oxygen supply. Given such an important ecosystem service as this, one would hope that our oceans’ algae numbers stay high…but, the results of a three year data analysis are anything but encouraging.

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