内容摘要：Ms Valentine said the new dramas would cost more to make, but the BBC expected them to deliver bigger audiences.

Ms Valentine said the new dramas would cost more to make, but the BBC expected them to deliver bigger audiences.

The authors of the new paper, published in the journal, draw together three main strands of evidence to underline this case.

First, records of the Earth's distant past suggest significant melting – with sea levels several metres higher than present - during previous similarly warm periods, such as 125,000 years ago.And the last time there was as much planet-warming carbon dioxide in the atmosphere as today - about 3 million years ago - sea levels were about 10-20m higher.Second, current observations already show an increasing rate of melting, albeit with variation from year to year.

"Pretty dramatic things [are] happening in both west Antarctica and Greenland," said co-author Prof Jonathan Bamber, director of the Bristol Glaciology Centre.East Antarctica appears, for now at least, more stable.

"We're starting to see some of those worst case scenarios play out almost in front of us," added Prof Stokes.

Finally, scientists use computer models to simulate how ice sheets may respond to future climate. The picture they paint isn't good.He said he could get 10 times as much from weddings, "so it is a far more lucrative business to be in".

Last year, 34 couples tied the knot at Godney Farm, including Paul and Michelle Chorley, from Street in Somerset.Mr Chorley explained the appeal: "We're quite outdoorsy people, so we wanted something that would give us that country feel.

"When we turned up and you see the view out the front, that is exactly what we'd imagined."Mrs Chorley added: "It was really relaxed, the children were running about, the dogs were running about, the sheep and the cows were around, it was just what we wanted."