Antarctic ice hits record low for January: climate monitor
The Antarctic Ocean area covered by ice was the lowest on record for January, exposing Earth to even more planet-warming heat, scientists reported Wednesday.
The Antarctic Ocean area covered by ice was the lowest on record for January, exposing Earth to even more planet-warming heat, scientists reported Wednesday.
Environment
13 hours ago
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The teeming life in the Southern Ocean, which encircles Antarctica, contributes to brightening the clouds that form there, according to a study published today in Atmospheric Chemistry and Physics. The clouds are bright because ...
Earth Sciences
Feb 7, 2023
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How do we go from protecting eight percent of marine areas to 30 percent in less than 10 years? This question is at the heart of a global forum in Canada this weekend aiming to save marine ecosystems under threat from overfishing, ...
Ecology
Feb 4, 2023
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In addition to oxygen, nitrogen or carbon dioxide, the air we breathe contains small amounts of organic gases, such as benzene and toluene. These oxidize into small particles or aerosols that contribute to the condensation ...
Earth Sciences
Jan 31, 2023
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It has been hypothesized, that the tipping of one element of the Earth's system can catalyze the tipping of others in a cascade. A study gives an example of an alternative option, in which the collapse of one component might ...
Earth Sciences
Jan 30, 2023
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Seventy years after the worst natural disaster to strike the Netherlands, Chiem de Vos, seven at the time, still hears his neighbour's desperate cries of "My children are drowning!" ringing in his ears.
Environment
Jan 30, 2023
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When imagining the deep sea, we often think of a cold, dark and empty wasteland, sparsely populated by monstrous-looking creatures of the deep. But in fissures along the seabed, ocean water superheated by the Earth's magma ...
Ecology
Jan 24, 2023
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A new study of red sea urchins, a commercially valuable species, investigated how different populations respond to changes in their environments. The results show that red sea urchin populations in Northern and Southern California ...
Ecology
Jan 20, 2023
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More than 2 billion people live in "water stressed" countries. These are territories where more than 25% of the available freshwater resources are withdrawn for human use each year.
Environment
Jan 19, 2023
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A new study led by the University of Vienna in which the Institut de Ciències del Mar (ICM-CSIC) has participated reveals that fishes living in the dark part of the oceans (essentially below 200 m depth in the water column) ...
Evolution
Jan 12, 2023
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Seawater is water from a sea or ocean. On average, seawater in the world's oceans has a salinity of about 3.5%. This means that every 1 kg of seawater has approximately 35 grams of dissolved salts (mostly, but not entirely, the ions of sodium chloride: Na+, Cl-). The average density of seawater at the surface of the ocean is 1.025 g/ml; seawater is denser than freshwater (which reaches a maximum density of 1.000 g/ml at a temperature of 4°C) because of the added mass of the salts. The freezing point of sea water decreases with increasing salinity and is about -2°C (28.4°F) at 35 gram per liter.
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