These areas of Weymouth could be underwater by 2030

The research was carried out by an independent organisation of leading scientists and journalists, collectively known as Climate Central, who investigate climate change and its impact on the public.

Using current projections, they have produced a map showing which areas of the country would be submerged by 2030.

Weymouth locations at risk from rising sea levels

Swathes of Weymouth is at risk of rising sea levels. Picture: Climate Central

The map reveals much of the Weymouth coastline is at risk of losing at least some land to the rising sea levels within less than a decade.

Locations such as the Greenhill area of Weymouth could be completely swallowed by the sea, along with Weymouth Harbour and a large section of the A354.

Asda Superstore in Newstead Road is also in an area at risk from rising water levels.

Attractions in the town such as Sandsfoot Castle in Old Castle Road, the Sea Life Centre at Lodmoor Country Park and Nothe Fort in Barrack Road, could end up submerged as well.

Datasets include "some error"

Climate Central does admit the calculations that have led to fears of a nightmare scenario include "some error".

It says: "These maps incorporate big datasets, which always include some error. These maps should be regarded as screening tools to identify places that may require deeper investigation of risk."

The maps have been based on "global-scale datasets for elevation, tides and coastal flood likelihoods" and "imperfect data is used".

Somewhat comfortingly, Climate Central adds: "Our approach makes it easy to map any scenario quickly and reflects threats from permanent future sea-level rise well.

"However, the accuracy of these maps drops when assessing risks from extreme flood events.

"Our maps are not based on physical storm and flood simulations and do not take into account factors such as erosion, future changes in the frequency or intensity of storms, inland flooding, or contributions from rainfall or rivers."

But it adds: "Improved elevation data indicate far greater global threats from sea level rise and coastal flooding than previously thought, and thus greater benefits from reducing their causes."