"Global warming could exceed 1.5C within five years" warns UK Met Office [theguardian.com]
Attenborough...'realise that the disasters that continue increasingly to afflict the natural world has one element that connects them all - the unprecedented increase in the number of human beings on the planet.' The world population continues to grow by 10000/hour...all have to be clothed, fed, watered and warmed .. all using energy and contributing to global warming.