What they did not mention, not once during the program, and this was on BBC Newsnight, was that there are enough resources for everyone to live a fine modest life. The issue is not that we do not have enough resources. The issue is that the minority in the world live very well-to-do lifestyles while the majority struggle.
Historically, this must be so until class consciousness is reached and capitalism has done an effective job of doing what it is capable of doing - both good and bad.
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Eventually, if the population continues to grow, people will run out of resources. We have not yet reached that point.
There are easily enough resources for each American to live in a nice doublewide and drive a motorcycle with a sidecar, even.
There are not enough for everyone to drive a Hummer and live in a mansion like Donald Trump's Palm Beach Mar a Tierra.