Look: Under the sea with scientists fighting climate change

Researcher Michelle Havlik of Australia dives into the water during a research trip in the Red Sea offshore of the King Abdullah University of Science and Technology (KAUST) near the city of Jeddah, Saudi Arabia.

Fish swim above a coral reef in the Red Sea offshore of the King Abdullah University of Science and Technology (KAUST) near the city of Jeddah.

Researcher Michelle Havlik of Australia dives into the water during a research trip in the Red Sea.

Yui Takeshita, a marine biologist at Monterey Bay Aquarium Research Institute, and Keaton Mertz dive while working on a project with Ken Caldeira, an atmospheric scientist at the Carnegie Institution for Science's Department of Global Ecology, at a research station on Lizard Island off the coast of Queensland, Australia October 23, 2019.

Ken Caldeira, an atmospheric scientist at the Carnegie Institution for Science's Department of Global Ecology, works at a research station on Lizard Island off the coast of Queensland

Fish swim above a coral reef in the Red Sea.

Ken Caldeira, an atmospheric scientist at the Carnegie Institution for Science's Department of Global Ecology, speaks with fellow researchers Manoela Romano de Orte and Yui Takeshita while working at a research station on Lizard Island off the coast of Queensland, Australia.

Researcher Manoela Romano de Orte and Grace Hinriens work with Ken Caldeira, an atmospheric scientist at the Carnegie Institution for Science's Department of Global Ecology, while working at a research station on Lizard Island off the coast of Queensland, Australia.

A diver swims above a coral reef in the Red Sea offshore of the King Abdullah University of Science and Technology (KAUST) near the city of Jeddah, Saudi Arabia.

A dye used to monitor ocean currents spreads through sea water after being released by researcher Manoela Romano de Orte while working with Ken Caldeira, an atmospheric scientist at the Carnegie Institution for Science's Department of Global Ecology, while working at a research station on Lizard Island off the coast of Queensland, Australia.

Researcher Manoela Romano de Orte and student Grace Hinriens work to move a mooring anchor while working with Ken Caldeira, an atmospheric scientist at the Carnegie Institution for Science's Department of Global Ecology, while working at a research station on Lizard Island off the coast of Queensland, Australia.

The future Site of the city Neom, a planned cross-border city, stands empty before development begins in the Tabuk Province of northwestern Saudi Arabia.