Chemical & Engineering News:
There has been a lot of speculation recently about whether more frequent hurricanes and more intense and longer lasting El Nios are related to global warming. "Until our models become a little more certain, it's difficult to conjecture whether hurricanes would increase or decrease with global warming," Karl says. "On a theoretical basis, there has been some work suggesting stronger hurricanes," he adds. A warmer sea surface is the primary feature of global warming that might cause more significant hurricanes, he explains, but ocean circulation changes may counter the effects of this added warmth.