内容摘要：show that in 1987, the U.S. government barred personnel stationed in the Soviet bloc and China from befriending, dating or having sex with locals after a U.S. Marine in Moscow was seduced by a Soviet spy. Such restrictions were relaxed after the collapse of the Soviet Union in 1991,

show that in 1987, the U.S. government barred personnel stationed in the Soviet bloc and China from befriending, dating or having sex with locals after a U.S. Marine in Moscow was seduced by a Soviet spy. Such restrictions were relaxed after the collapse of the Soviet Union in 1991,

Dozens of companies and academic groups are pitching the same theory: that sinking rocks, nutrients, crop waste or seaweed in the ocean could lock away climate-warming carbon dioxide for centuries or more. Nearly 50 field trials have taken place in the past four years, with startups raising hundreds of millions in early funds.But the field remains rife with debate over the consequences for the oceans if the strategies are deployed at large scale, and over the exact benefits for the climate. Critics say the efforts are moving too quickly and with too few guardrails.

Here are takeaways fromon companies seeking to harness the world’s oceans to capture carbon.Most climate models show that cutting emissions won’t be enough to curb global warming. The world needs to remove heat-trapping gases, too.

Money has poured into different strategies on land — among them, pumping carbon dioxide from the air, developing sites to store carbon underground and replanting forests, which naturally store CO2. But many of those projects are limited by space and could impact nearby communities.The ocean already regulates Earth’s climate by absorbing heat and carbon, and by comparison, it seems limitless.

“Is that huge surface area an option to help us deal with and mitigate the worst effects of climate change?” asked Adam Subhas, who is leading an ocean carbon project with the Woods Hole Oceanographic Institution, based on Cape Cod, Massachusetts.

Most companies looking offshore for climate solutions are trying to reduce or transform the carbon dioxide stored in the ocean. If they can achieve that, said Will Burt, chief ocean scientist for the company Planetary Technologies, the oceans will act “like a vacuum” to absorb more gases from the air.Aubrey Plaza, from left, Charlie Day, and Margaret Qualley pose for photographers at the photo call for the film ‘Honey Dont!’' at the 78th international film festival in Cannes, southern France, Saturday, May 24, 2025. (Photo by Scott A Garfitt/Invision/AP)

Aubrey Plaza poses for photographers at the photo call for the film ‘Honey Dont!’' at the 78th international film festival in Cannes, southern France, Saturday, May 24, 2025. (Photo by Lewis Joly/Invision/AP)Aubrey Plaza poses for photographers at the photo call for the film ‘Honey Dont!’' at the 78th international film festival in Cannes, southern France, Saturday, May 24, 2025. (Photo by Lewis Joly/Invision/AP)

Margaret Qualley poses for photographers at the photo call for the film ‘Honey Dont!’' at the 78th international film festival in Cannes, southern France, Saturday, May 24, 2025. (Photo by Lewis Joly/Invision/AP)Margaret Qualley poses for photographers at the photo call for the film ‘Honey Dont!’' at the 78th international film festival in Cannes, southern France, Saturday, May 24, 2025. (Photo by Lewis Joly/Invision/AP)