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Northern rockhopper penguins on Gough Island in the Tristan da Cunha chain. Photo: Auscape/Universal Images Group via Getty Images

The waters around the remote inhabited island of Tristan da Cunha in the South Atlantic are set to become the world's fourth-largest marine sanctuary.

The big picture: Currently less than 3% of the world's ocean area is fully protected from human activity, compared to 13% of the world's much smaller land mass. With the oceans coming under increasing pressure from fishing, pollution and climate change, expanding true marine sanctuaries is more important than ever.

By the numbers: The four-island archipelago of Tristan da Cunha is a British territory that is more than 2,000 miles east of South America and a week-long boat trip from South Africa.

  • The new marine sanctuary, which was announced on Friday, will encompass 265,437 square miles, making it almost three times larger than the entire United Kingdom.

How it works: 90% of the waters around the island chain will become a full "no-take" sanctuary, meaning that fishing, mining, and any other kind of extractive activity will be banned.

  • The sanctuary will be part of the U.K. government's larger Blue Belt Programme, which already protects some 2.7 million square miles of marine ecosystems around British territory across the globe.

What they're saying: "This is a place that has a unique ecosystem that is found nowhere else," marine conservationist Enric Sala told National Geographic magazine.

Of note: The benefits of protection won't just flow to seabirds and other species that Tristan da Cunha their home.

  • A paper published last month found that expanding such marine protected areas by just 5% could help improve future fishing catches by at least 20%.

The bottom line: It wasn't that long ago that even environmentalists thought the oceans were far too vast to be affected by human activity, but we now know that's not the case. If we want the oceans and all they support to thrive in the future, we need to protect them in the present.

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If you run a hospital, a bank, a utility or a city, chances are you'll be hit with a ransomware attack. Given the choice between losing your precious data or paying up, chances are you'll pay.

Why it matters: Paying the hackers is the clear short-term answer for most organizations hit with these devastating attacks, but it's a long-term societal disaster, encouraging hackers to continue their lucrative extortion schemes.

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CDC mask guidance sparks confusion, questions

Illustration: Sarah Grillo/Axios

The CDC's surprise guidance last week freeing the fully vaccinated to go maskless sowed plenty of concerns across the country— even earning the "Saturday Night Live" treatment for all the questions it spurred.

Why it matters: With plenty of Americans still unvaccinated — and without any good way to confirm who has been vaccinated — some experts worry this could put many at increased risk.

Updated 3 hours ago - World

In photos: Israel-Hamas aerial bombardments enter second week

A ball of fire and a plume of smoke rise above buildings in Gaza City as Israeli forces shell the Palestinian enclave, early on May 17. Photo: Mahmud Hams/AFP via Getty Images

Israel and Hamas continued aerial bombardments into Monday morning, as fighting entered a second week.

Why it matters: The worst violence in the region since 2014 has resulted in the deaths of 197 people in Gaza, ruled by Hamas, and 10 in Israel. 58 Palestinian children and two Israeli children are among those killed since the aerial exchanges began on May 10, Reuters notes.