Earth has lost a Quarter of its Water Blog :
- Jan 1, 2018
- 1 min read
In its early history, the Earth's oceans contained significantly more water than they do today. A new study indicates that hydrogen from split water molecules has escaped into space.
Although water covers 70 percent of the Earth's surface, water is actually a rare substance that represents just 0.05 percent of the Earth's total mass.
Water has nevertheless played a crucial role in the emergence of life on Earth. Without water, the Earth would in all likelihood be a dead planet.
The amount of water on the planet has not always been the same, however. A research group at the Natural History Museum of Denmark has discovered this by measuring how hydrogen isotope ratios in the oceans have changed over time.
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