It is the second year in a row that a heat wave has hit the New York City region earlier than usual, as global warming is projected to worsen heat waves and make them more frequent, climate experts say.

Douglas McIntyre, Editor-in-Chief at Climate Crisis 24/7, reports that intense heatwaves now stretching across much of the U.S. are overwhelming emergency rooms. Cities from Chicago to New York are experiencing 100+ degree temperatures,

All of New York City is being asked to conserve power with Tuesday's extreme heat straining power systems and causing problems around the Tri-State Area. New York City's emergency notification system put out the alert from Con Edison asking New Yorkers to limit their power use.

The heat wave has arrived. Temperatures and humidity are climbing as the tri-state heads into an expected record-shattering heat wave, where it could feel like 100 degrees or hotter through Wednesday.