Natural gas prices rose more than 7% during this wave of extremely cold weather across large parts of the country.
Winter weather is overwhelming power grids unprepared for climate change, leaving millions without electricity in record-breaking cold.
At least 20 people have died, some while struggling to find warmth inside their homes. In the Houston area, one family succumbed to carbon monoxide from car exhaust in their garage; another perished after flames spread from their fireplace.
Blame the polar vortex, a weather pattern that usually keeps to the arctic, but is increasingly visiting lower latitudes and staying beyond its welcome. Scientists say climate change caused by humans is partly responsible for making its southward escapes longer and more frequent.
The Associated Press and ABC News contributed to this report.
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Originally published at https://abc7ny.com/weather/gas-prices-could-be-rising-amid-us-extreme-cold-experts/10347611/ on .