Greenpeace ships hoisted their sails for an epic journey across the oceans, from the North Pole to the South Pole. During this year-long expedition, scientists and experts joined the crew to conduct crucial scientific research. They have also witnessed firsthand threats to the oceans, such as overfishing. The oceans produce half of our oxygen and food for a billion people, and because they soak up huge amounts of carbon dioxide, they’re also one of our best defences […]