BBC wildlife documentaries are just a chance to tell us all off
Older readers may remember a time when landmark BBC wildlife documentary series were joyous celebrations of the miraculous fecundity of the planet we’re lucky enough to find ourselves living on. Well, not any longer. In our more censorious age, they’ve become another chance to essentially tell us all off. So it was that Seven Worlds, One Planet (BBC1, Sunday) began with Sir David Attenborough presenting the usual highlights package of the wonders to come, with each episode focusing on a different continent. But then he put on his special serious voice to add the dark warning that ‘This may be the most critical moment for life on Earth since the