An inconvenient truth. For Al Gore.

From the Daily Mail:

The much-hyped bid to save the world is being masterminded by former U.S. vice president Al Gore - who helped focus attention on the environmental movement with his Oscar-winning film, An Inconvenient Truth - and features artists including The Police, Red Hot Chili Peppers, UB40 and Metallica.

No doubt to rapturous applause, Madonna will call for mass global change to reduce carbon emissions and to tackle 'climate crisis'.

Watching the veteran star lap up the adoration, her entourage could, however, be forgiven for exchanging slightly jaded glances - having witnessed her jet in for the concert from New York.

For her 2006 World Tour, she flew by private jet, transporting a team of up to 100 technicians and dancers around the globe. Waiting in the garage at home, she has a Mercedes Maybach, two Range Rovers, an Audi A8 and a Mini Cooper S.

Dr Collins estimates that the global audience for Live Earth will generate some 1,025 tonnes of waste. An extraordinary one million people are expected at the free concert at Rio de Janeiro's Copacabana beach, featuring Lenny Kravitz, Macy Gray and Pharrell Williams.

Live Earth say that they will recycle much of the waste generated. Fine talk, but in fact some of the concert venues are struggling to keep up with their commitments.

A spokesman for Wembley says they only have the capacity to recycle around a third of waste produced - the rest will go into landfill sites.

Travel forms the vast majority of the 'carbon footprint' talked of by ecological campaigners - contributing up to 90 per cent of the environmental 'cost'.

Collins says: "It is patently absurd to claim that travel of this nature doesn't have an impact. Each person attending the event will have to make a return journey to the venue, be it by air, rail, bus or car. This burns fossil fuel - precisely what we are trying to reduce.

"There is also the environmental cost of these artists flying around the world - that is absolutely huge."

Indeed, an audit of the lifestyles of the A-list performers appearing at Live Earth, reveals that they are among the worst individual polluters in the world, as their world tours and private jets billow thousands of tons of carbon dioxide into the atmosphere every year. One hour in a Gulfstream jet burns as much fuel as driving a family car for a year.

The Daily Mail has found that five of the top performing acts together have an annual output of almost 2,000 carbon tonnes. Madonna alone has an annual carbon footprint of 1,018 tonnes, according to John Buckley.

Remember, the average Briton produces just ten tonnes.