From the New York Times, I'm Sabrina Tavernici, and this is The Daily.

This extreme summer heat is not just impacting us on the land.

The oceans are now hitting dangerously high record-breaking temperatures.

A buoy in Manantee Bay recorded temperature of 101.1 degrees.

A historic heat wave is warming the waters off the coast of Florida, endangering a critical

part of sea life.

The coral reef.

Scientists predict 70-90% of coral reefs could die off in the next 30 years.

Today, my colleague, Katrin Einhorn, on the urgent quest to save coral, and what it might

mean for the world if it disappears.

It's Tuesday, August 22.

Katrin, thanks for coming on.

Good to be here.

So, Katrin, we've been hearing these pretty alarming reports of really hot water off

the coast of Florida.

And it's reached these incredibly high temperatures, like over 100 degrees.

And we also know from your reporting that this is very bad for lots of different kinds

of sea life, in particular for coral.

So tell me what's going on.

So yeah, in early July, we started seeing sea surface temperatures in the 90s off the

Florida Keys, and that's way earlier than the hottest temperatures should happen, which

is August and September.

...