Scientists estimate sea kelp generates $500 bn a year

Undersea kelp forests generate some $500 billion in fishing revenue and other benefits while absorbing five million metric tons of carbon dioxide a year, scientists estimated in a study published Tuesday.

How the Earth is changing across different ecosystems

Climate change is a complicated phenomenon with a variety of both abrupt and gradual effects that scientists are working hard to uncover. Emerging findings on how various ecosystems are responding to a changing climate, stemming ...

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