In four years, U.S. gas prices have doubled to more than $3.70 a gallon, and crude oil has tripled to around $125 a barrel. Allowing for inflation, that's higher than prices were during the 1978-83 oil shock that triggered a recession and sky-high interest rates. But . . .
At first glance, they look like a couple of giant inflatable garden chairs that have washed out to sea
But they are, apparently, the ultimate solution to rapidly rising sea levels.
This computer-generated image shows two floating cities, each with enough room for 50,000 inhabitants.