Climate, +1 meter sea level risk by 2100

The global average sea level rise could exceed one meter by the end of this century and 5 meters by 2300 if the greenhouse gas emission cutting targets are not met. It is the result of a survey among 106 international experts among those who have published more scientific studies on sea level (at least six articles published in peer-reviewed journals since 2014) chosen from a database of the most important journals. The study, conducted by the Nanyang University of Technology in Singapore (Ntu Singapore), assessed two climatic scenarios: low and high emissions. In a scenario where the average increase in global warming is limited to 2 degrees centigrade from pre-industrial levels, experts have estimated an increase of 0.5 meters in 2100 and from 0.5 to 2 meters in 2300; in a scenario of high greenhouse gas emissions with a 4.5 degree increase in heating, experts estimated a greater rise in sea level from 0.6 to 1.3 meters in 2100 and from 1.7 to 5, 6 meters in 2300. These projections exceed the previous estimates of the UN Panel on Climate Change by the International Panel on Climate Change (IPCC). Benjamin Horton, president of the NTU Asian School of the Environment and who led the survey published in Climate and Atmospheric Science (partner of the Nature group) explained that "the complexity of the projections above sea level and the huge amount of scientific publications on this issue make it difficult for governments to have an overview of the state of science, which is why it was useful to probe the main experts on the subject, who are able to provide a broader picture of future scenarios and to inform policy-makers in a way that can prepare the necessary mitigation and adaptation measures ". Among the major uncertainties, climate change experts have identified the ice sheets of Greenland and Antarctic as important indicators of climate change and which cause sea levels to rise.