Quote: "The respected broadcaster and naturalist, Sir David Attenborough, told the BBC recently that population growth was "out of control" - but one expert say

Quote: "The respected broadcaster and naturalist, Sir David Attenborough, told the BBC recently that population growth was "out of control" - but one expert says the number of people on the planet could peak in 40 years. Who should we believe?" Wait -- isn't it obvious that both statements are true? That world population will peak in 40 years, and population is out of control? Where's the conflict between those two statements? If population had peaked 30 years ago, I might have been willing to hear that population isn't out of control, but I would still argue that it's a serious problem. Why? Because that earlier population was already unsustainable with existing resources. Many have argued that a world population of 500 million to 1 billion people is the carrying capacity of Planet Earth, if we expect not to strip the planet bare and then face a crisis we can only imagine. Any higher population only postpones an inevitable day of reckoning.