According to a study published in the journal Nature, phytoplankton, the microscopic plants that support all life in the oceans, are dying off at a dramatic rate.

(Studies have shown that the phytoplankton of the oceans has declined by about 40 per cent over the past century, with much of the loss occurring since the 1950s. They believe the change is linked with rising sea temperatures and global warming. If you think this won’t affect you, according to Dr Boyce, “A decline of phytoplankton affects everything up the food chain”, and we are up the food chain.)