Sea levels to rise

Sea levels around the world can be expected to rise by several metres in coming centuries, if global warming carries on. Even if global warming is limited to 2 degrees Celsius, global-mean sea level could continue to rise, reaching between 1.5 and 4 metres above present-day levels by the year 2300, with the best estimate being at 2.7 metres, according to a study just published in Nature Climate Change. However, emissions reductions that allow warming to drop below 1.5 degrees Celsius could limit the rise strongly. The study is the first to give a comprehensive projection for this long perspective, based on observed sea-level rise over the past millennium, as well as on scenarios for future greenhouse-gas emissions. 

 

Sea levels over the 21st century

 

Article: Schaeffer, M., Hare, W., Rahmstorf, S., Vermeer, M. (2012): Long-term sea-level rise implied by 1.5° C and 2° C warming levels. Nature Climate Change

Weblink to the article when it is published on June 24th: http://www.nature.com/nclimate/journal/vaop/ncurrent/full/nclimate1584.html