This is the latest very official estimate from the United States published in a report by six federal agencies including NASA. According to US agencies, this is the fastest rise ever recorded.
With our correspondent in Miami, David Thomson
Thirty centimeters more in thirty years is as much as the increase in sea level observed over the last hundred years. According to this report led by the US National Oceanic and Atmospheric Agency (NOAA), 140,000 homes now live with the risk of more violent storms and especially chronic flooding.
Some cities on the American coast will soon have their feet in water almost permanently with floods that could occur every month. And on average, major floods will be five times more frequent.
“A red alert”
These estimates are based on the quantities of CO2 already emitted. Clearly, they are considered irremediable. But if global warming continues, NOAA estimates that sea level rise could reach 60cm by 2100.
” This new data is a red alert “, reacts the climate adviser of Joe Biden who promised to halve the CO2 emissions by 2030 while the United States is now the second largest emitter on the planet after China.