Earth’s water cycle
Imagine the world without water: as cold and lifeless as the planet Mars. Earth is unique in our solar system in being able to sustain liquid water on its surface. Water is essential for life and for Earth’s climate, helping transport heat around the planet, but it is difficult to track through the whole water cycle. The global view offered by satellites helps. ESA’s Climate Change Initiative is looking at a range of climate variables linked to the water cycle.
© Planetary Visions (credit: ESA/Planetary Visions)
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Regarding water – slow it, spread it, sink it. (Permaculture)
Astronomers have spotted water that looks strikingly similar to our own in orbit around a young star 1,300 light-years from Earth.