Good morning. The oceans are – according to the UN – “the world’s greatest ally against climate change”. While many of us now understand the urgent need to take the climate crisis seriously, the focus is still very much on the land and the air. Oceans cover more than 70% of the surface of the planet, generate 50% of the oxygen we breathe, absorb 25% of all carbon dioxide emissions and capture 90% of the excess heat generated by these emissions.
Perhaps it is time we stopped to think a bit more about our seas, consider the dangers they face and look at what we can do to help. Lisa Bachelor, who edits the Guardian’s Seascape series about the state of our oceans, has – if not all the answers – quite a few of them. She joins us after the headlines.