Professor Will Steffen, head of the climate change unit at the Australian National University and science adviser to the Federal Government in Australia, says that sea levels around the world could rise by 4 meters this century. He also claims that the scientific community underestimates how fast our climate is changing.

“The evidence over the past 12 to 18 months suggests that we have underestimated how fast this aspect of the earth’s system can change,” he said.

“We see things happening much faster than we thought.”

Professor Steffen raised this concern at the Coast to Coast Collaboration Conference in Darwin where he said “a four-metre rise could have devastating effects.”