Climate scientists and marine advocates are calling on governments worldwide to look beyond green policymaking when it comes to climate change. Countries must recognize the important role that oceans have in limiting climate change and enact policies to protect marine ecosystems, the U.K.-based Environmental Justice Foundation said yesterday in a report endorsed by environmental experts and advocates. The report highlights studies showing that mangrove forests store up to four times more carbon per hectare than tropical rainforests. The letter urges leaders to set targets for protecting and restoring marine ecosystems as part of their commitments under the Paris Agreement. Many of those measures can help reduce carbon emissions and protect communities from the impacts of climate change.