(ABC) — A heat wave blanketed a vast swathe of the United States over the 4th of July weekend, threatening the health of tens of millions of people and the power supply for thousands of homes. A lesser-known risk of extreme heat, meanwhile, may hammer pocketbooks. Heat waves threaten an array of costs for the economy, sapping the productivity of outdoor workers, shutting some shoppers inside their homes and driving up utility payments, some anal…
The thermometer is on the way to becoming an economic indicator. Just as markets react to higher interest rates and higher oil prices, each degree of more starts to have a price. Also for employment, productivity and competitiveness. Heat waves have ceased to be exceptional episodes.