One of the driest summers on record has led to water shortages

It could mean the region suffers the effects of rising sea levels, floods and extreme weather events with increasing frequency.

Caroline Lucas, Green MEP for the South East, told energy policy makers that the UK Government must start taking climate change seriously.

"Over the coming years the potentially devastating effects of climate change will be one of the biggest problems faced by the South East," she said.

Hottest temperature

"It is clear now that climate change will have a significant impact on our economy, environment and quality of life."

Dr Lucas, speaking at the South East Renewable Energy Conference in Reading, Berkshire, said energy suppliers must also do more to bring in renewable energy sources and reduce emissions.

This summer saw some of the driest months in the region since records began in 1897, and the UK's hottest temperature ever was recorded at Brogdale, near Faversham in Kent.

The Environment Agency issued a drought permit to South East Water earlier this month to help it meet demand as reservoir levels fall.

It has warned that unless rainfall is 20% higher than average this winter there could be water shortages and drought next year.