Which Future Will We Choose?

Climate and energy choices this decade will influence how high sea levels rise for hundreds of years.

Piazza dei Martiri (Martyrs' Square), Naples, Italy

ITA__0__Naples__Piazza_dei_Martiri__L13__3p0C.jpg
If we keep our current carbon path
(3°C global warming)
(3°C warming)
Image Landsat / Copernicus
ITA__0__Naples__Piazza_dei_Martiri__L13__1p5C.jpg
If we sharply cut carbon pollution
(1.5°C global warming)
(1.5°C warming)
Image Landsat / Copernicus
Present-day sea level1.1°C1.5°C2°C3°C4°C

These images show projected future sea levels at Piazza dei Martiri (Martyrs' Square) in Naples, Italy due to human-caused global warming under two different scenarios. Climate and energy choices in the coming few decades could set the destination, but the timing of rise is more difficult to project: these sea levels may take hundreds of years to be fully realized.