Live so that all earth survives

EAST RUTHERFORD, US - A concert for a cause is more and less than a concert.

EAST RUTHERFORD, US - A concert for a cause is more and less than a concert.

It's public relations and proselytising for the cause, while for the musicians it's exposure, validation and a sop to a star's conscience.

Live Earth, the biggest international rock event so far - with shows on every continent, including a small one in Antarctica - was presented as an attempt to save the human race from global warming.

Previous international concerts such as Live Aid and Live 8 were about helping other people, while Live Earth was in everyone's self-interest.

There's no need for altruism when your own survival is threatened. - Reuters

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