London (PTI): Saying little has changed regarding global warming, Nobel Peace Prize-winner Al Gore has said he would make a sequel to his Oscar-winning documentary, 'An Inconvenient Truth'.

The former US Vice President said: "I will make a sequel to the 2006 documentary 'An Inconvenient Truth' and despite earths 'rising fever', I am hopeful for a happy ending".

However, he admitted that the situation had instead got worse since his documentary hit cinemas in 2006.

Gore said: "I have to say the situation has not improved since I made the movie in 2006. Sure, awareness has grown and more people are concerned since scientists said we had just ten years to take action to halt rising sea levels," was quoted as saying by The Sun.

"But the situation has got worse. The entire North Polar ice cap is melting and could be gone in some areas in as little as five years," he said.

He warned that individual efforts such as changing to low energy lightbulks are important, it is more significant for world leaders to change laws to stop pollution pouring into the atmosphere and affecting the climate.

Recent polls had found that while people rate climate change as a serious problem, some ranked it lower than clearing up dog mess, he was quoted as saying.

Gore said the incoming US President - whether it is either of the Democratic candidates, Barack Obama or Hillary Clinton, or the Republican John McCain - would be a force for change on environmental issues.

He also claimed no one could be worse than US President George W Bush in actively working against the cause.

The US has failed to live up to the Kyoto Protocol to reduce carbon emissions, he said.