Heat waves hitting around the globe, made more frequent by climate change, scientists say

As much of the nation swelters under temperatures that have canceled outdoor sports, sparked wildfires and taxed the infrastructure keeping people cool, experts warn that heat waves will only get more common. Climate chaos: Extreme heat, wildfires and record-setting storms suggest a frightening future is already here

Heat waves are just one of the types of extreme weather climate change becoming more frequent — but it's already led to deaths both in the U.S. and around the world this year.

"This is the climate change that we've been promised by scientists," Michal Nachmany, founder of Climate Policy Radar, told CBS News foreign correspondent Ramy Inocencio about record-breaking temperatures in the U.K. this week.