Climate Change Could Rise Sea Levels By 20 Feet
The projection is based on climate records, with scientists finding that increases of 20 feet have happened at least twice over the past 3 million years when temperatures were very similar to what they are today.
These findings are extremely important because they suggest that the same thing might be occurring now.
“As the planet warms, the poles warm even faster, raising important questions about how ice sheets in Greenland and Antarctica will respond. While this amount of sea-level rise will not happen overnight, it is sobering,” said geochemist Andrea Dutton, who is the lead study author.
The researchers, studied everything from fossilized coral to records of ice sheets and concluded that sea levels rose 20 to 30 feet higher than present about 125,000 years ago, when global average temperature was 1.8 degrees higher than preindustrial levels, similar to today’s average.
Twenty fee of sea level rise would be catastrophic for hundreds of millions of people living in coastal zones. Most of Florida is less than 50 feet above sea level, and places like New Orleans, Dhaka and Singapore would be swallowed up by the sea.