Consider the warnings of Norman Borlaug:
 "The green revolution has 
won a temporary success in man's war against hunger and deprivation; it 
has given man a breathing space. If fully implemented, the revolution 
can provide sufficient food for sustenance during the next three 
decades. But the frightening power of human reproduction must also be 
curbed; otherwise the success of the green revolution will be ephemeral 
only. Most people still fail to comprehend the magnitude and menace of 
the "Population Monster"...Since man is potentially a rational being, 
however, I am confident that within the next two decades he will 
recognize the self-destructive course he steers along the road of 
irresponsible population growth..."
 Technology and progress can buy 
some time, but it can't solve the coming crisis. There's just too damn 
many people. Until we solve that problem, all other problems are 
inconsequential.
 By the way, the quote is from his Nobel Peace Prize
 speech in 1970. I think we're seeing the affects today, the ones he 
warned about 46 years ago. We haven't begun to address the problem, and 
the situation will accelerate in seriousness.