In the film clip below, Sir David Attenborough makes a fine speech about the impact of population growth on the natural world and human food supply. Like Suzuki, Sir David is awe inspiring. In the last David Suzuki clip I posted here, he mentions we are in our “last doubling”. I gave this a bit of thought actually. Experts tell us our population will peak at about 9 billion, so the last doubling started when the population was 4.5 billion. This occurred in 1980, or 33 years ago. Do we have another 33 years to go? Dr Graham Turner thinks not, he puts the beginning of population collapse at about 2030 or just 16 years away……. either way, growth will simply stop.