The Economic Times

In 1980s, sea otters gradually returned to California's coastlines after being nearly extinct. Their return restored kelp forests, reduced carbon emissions and flooding

Once hunted to extinction for their pelts, sea otters gradually returned to the Californian coastlines. Their comeback reduced the sea urchin and crap populations allowing kelp forests and coastal marshes to heal. These ecosystems help prevent carbon emissions to the ecosystem and also provide natural protection against flooding. Helping one small predator have a stale habitat can also help the environment recover in various ways.