Summary:
- The United States has been experiencing record-breaking cold temperatures due to a disruption in the polar vortex, a large area of low pressure and cold air surrounding the North Pole.
- The polar vortex has weakened, allowing cold air from the Arctic to spill down into the central and eastern U.S., leading to dangerously low temperatures and wind chills.
- This disruption in the polar vortex is a complex phenomenon that is not fully understood, but it is likely linked to climate change and the warming of the Arctic region.