France, currently the biggest recipient of CAP funds, knows that the balance sheet will look very different when the CAP is fully extended to the new member states from central and eastern Europe.

BBC: NEWS | Europe | EU excited and worried by Sarkozy

But the volume of the Martian north polar cap is less than half that of the Greenland ice cap, and about four percent of the Antarctic ice sheet.

BBC: By BBC News Online Science Editor Dr David Whitehouse