Blue Planet II is an environmental emergency disguised as a nature documentary

 “The health of our oceans is under threat. They’re changing at a faster rate than ever before in human history.”

A year on from the successes of Planet Earth II, the BBC’s naturalist-in-chief Sir David Attenborough returns to with Blue Planet II – a series four years in the making that dares to take its viewers into the uncharted frontiers of the oceans.

Significant advances in technology since 2001 when The Blue Planet aired, Attenborough tells us, means “we can enter new worlds and shine a light on behaviours in ways that were impossible just a generation ago.” ...
source: New Statesman