Conservation ambitions must be set higher

A full 50% of Earth's surface must remain vegetated if humanity is to meet international goals for maintaining essentials such as food, clean water, and air, according to new research published in Conservation Biology.

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.

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