Our rising sea level goes up to 11

While we can see the point of getting Spinal Tap to reunite for Live Earth... hang on a mo, actually: we can't. The joke was a good one, but isn't it wearing more than a little thin?

But we can understand how they might have wound up on the bill. What we don't get is how they're going to work a made-up band into the proceedings without either undermining the point of the whole event, or else taking refuge in jokes so weak it wouldn't be worth the carbon emissions to get there?

[Rob] Reiner spoke to The Associated Press on Tuesday to explain the reunion of Spinal Tap — a band always known more as a parody of rock `n roll excess than environmental awareness.

"They're not that environmentally conscious, but they've heard of global warming," said Reiner, whose other films include "When Harry Met Sally" and "Stand By Me." "Nigel thought it was just because he was wearing too much clothing — that if he just took his jacket off it would be cooler."

Oh. Weak jokes all the way to climateggedon, then.