Photo: AP

Global sea levels could rise by more than double the current best estimate, according to a new analysis of climate change in Antarctica, the BBC reports.

The modelling assessment says that Antarctic melting alone could contribute more than a metre to sea level by the end of this century.

By 2500, according to the study, the same source could cause levels across the world to rise by 13m.

The authors say that rapid cuts in carbon emissions could limit this risk.