科学与环境
The way Earth's 'thermostat' works may have changed during Pangea era
来源: Phys.org - latest science and technology news stories · 发布于

Life arose on Earth at least 3.5 billion years ago, and our planet has remained habitable ever since—not too hot, not too cold. These life-sustaining conditions are possible in part thanks to a built-in, carbon cycle–based climate "thermostat" that controls the amount of carbon d
Life arose on Earth at least 3.5 billion years ago, and our planet has remained habitable ever since—not too hot, not too cold. These life-sustaining conditions are possible in part thanks to a built-in, carbon cycle–based climate "thermostat" that controls the amount of carbon dioxide in the atmosphere.
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Open database tracks Earth's water cycle by standardizing decades of satellite data
All water comes from somewhere. Researchers who want to know where it comes from rely on water isotopes, variants of water molecules with slightly different masses, as location identifiers. In particular, the specific ratio of heavy to light water isotopes is unique to the water'
Phys.org - latest science and technology news stories ·
Astronomers uncover a mysterious magnetic web above the Sun
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