It's also prompting plenty of discussion about the relationship between the Arctic blast and global warming.
First the markets: Bloomberg reports that falling temperatures helped to push up natural-gas prices Monday as demand for home heating rises.
U.S. natural-gas demand hit a record on Monday, MarketWatch reports.
The Associated Press reports that the Arctic blast also bolstered oil prices in trading early Tuesday.
All this cold air rushing into the U.S. "may be a counterintuitive example of global warming in action," Climate Central reports. The nonprofit research organization's Andrew Freedman explains why the weather pattern may be linked to rapid warming and loss of sea ice in the Arctic.
The Washington Post's Capital Weather Gang reports that the frigid U.S. weather "in no way disproves climate change."
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