Sargassum, a type of seaweed, is creating problems as it washes up across the Caribbean.

A species of seaweed has been washing up on beaches across the Caribbean and South Florida.

Guyana’s fish production has suffered a significant decline partly due to the adverse impact of sargassum seaweed, local and regional fishery experts said.

It already has caused coral bleaching in Hawaii and may be tied to strandings of marine mammals along the California coast.

The fast-warming Sea of Okhotsk, wedged between Russia and Japan, is a cautionary tale of the far-reaching consequences when climate dominoes begin to fall.