Ailing oceans in the spotlight at major UN meet
A long-delayed UN conference on how to restore the faltering health of global oceans kicks off in Lisbon Monday, with thousands of policymakers, experts and advocates on the case.
Humanity needs healthy oceans. They generate 50 percent of the oxygen we breathe and provide essential protein and nutrients to billions of people every day.
Covering more than two-thirds of Earth's surface, the seven seas have also softened the impact of climate change for life on land.
But at a terrible cost.
