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Articles on Climate change

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Migrants hoping to reach the distant U.S. border walk along a highway in Guatemala in January 2021. AP Photo/Sandra Sebastian

As more climate migrants cross borders seeking refuge, laws will need to adapt

Climate migrants don’t fit neatly into the legal definitions of refugee or migrant, and that can leave them in limbo. The Biden administration is debating how to identify and help them.
Shutterstock/Longjourneys

Power from the ocean: can we use bio-fouling organisms to help extract energy from waves?

Ocean waves are a massive source of energy, but it’s challenging to design power generators for the harsh environment. Allowing marine organisms to grow on engineered structures could help.
Blue sharks, which are prized for their fins, swimming off Cape Point in South Africa. Morne Hardenberg

South Africa’s plan to protect sharks needs an urgent update

Sharks grow slowly and produce few young compared to bony fishes. In many cases, this means that their populations are fished out faster than can be replenished if not well managed.

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