Climate change: Pricey to fix, but sounding ever more necessary

An estimated global price tag? A cool $20 trillion over two decades. Worst of all, according to a UN report, the needed changes would affect many of the world’s poor the most.

But, the need?

Seawater warming accounted for 40 percent of a strong increase in hurricanes in the mid-1990s to today, scientists in the prestigious journal Nature say.