When the heads of state of 14 nations sat down together in late 2018 to discuss the grim condition of the world’s oceans, there was no certainty that anything consequential would result. The leaders planned 14 gatherings, but met only twice before the pandemic upended their talks.

So when the group announced this week the world’s most far-reaching pact to protect and sustain ocean health, it signaled a bit more than a noteworthy achievement in a complicated time. The agreement, negotiated via the nuance-free tool of video conferencing, also offered hope of a renewed era of global accord on climate, where issues grounded in science might finally trump political posturing.

Overall, the 14 leaders agreed to sustainably manage 100 percent of the