内容摘要：Natasha Cabezas, a naturalist from San Lorenzo, Ecuador, dives with hammerhead sharks off of Wolf Island, Ecuador, in the Galapagos, on Sunday, June 9, 2024. (AP Photo/Alie Skowronski)

Natasha Cabezas, a naturalist from San Lorenzo, Ecuador, dives with hammerhead sharks off of Wolf Island, Ecuador, in the Galapagos, on Sunday, June 9, 2024. (AP Photo/Alie Skowronski)

by, or close to, 2050.Shipping needs to cut emissions rapidly and there are no solutions widely available today to fully decarbonize deep-sea shipping, according to the Global Maritime Forum, a nonprofit that works closely with the industry. There is a lot of interest in ammonia as an alternative fuel because the molecule doesn’t contain carbon, said Jesse Fahnestock, who leads the forum’s decarbonization work.

AP correspondent Julie Walker reports on a tugboat powered by ammonia.Ammonia is widely used for fertilizer, so there is already infrastructure in place for handling and transporting it. Ton for ton, it can hold more energy than hydrogen, and it can be stored and distributed more easily.“It certainly has the potential to be a main or even the main fuel,” Fahnestock said. “It has a potentially very friendly greenhouse gas footprint.”

The tank that will hold ammonia and power the NH3 Kraken sits on the tugboat on Friday, Sept. 13, 2024, in Kingston, N.Y. (AP Photo/Alyssa Goodman)The tank that will hold ammonia and power the NH3 Kraken sits on the tugboat on Friday, Sept. 13, 2024, in Kingston, N.Y. (AP Photo/Alyssa Goodman)

The tank that will hold ammonia and power the NH3 Kraken sits on the tugboat on Friday, Sept. 13, 2024, in Kingston, N.Y. (AP Photo/Alyssa Goodman)

The tank that will hold ammonia and power the NH3 Kraken sits on the tugboat on Friday, Sept. 13, 2024, in Kingston, N.Y. (AP Photo/Alyssa Goodman)“He said, ‘If you don’t bother them, then they won’t bother you’,” she recalled.

When a bear came near in later years, after her father had died, her mom was scared.“Everything was like pandemonium. Everybody was yelling, and all the kids had to come in and everybody had to go home. And then we stayed silent in the house for a long time until we knew for sure that bear was gone, ” Berg recalled.

For Van Nest, the provincial officer, the group he came upon that day was plenty safe from a bear about 300 yards (meters) away. He said the bear was “putting on a bit of a show” for the tourists.“This is a great situation to be in,” he said. “The tourists are a safe distance away and the bear’s doing his natural thing and not being harassed by anybody.”