Extreme heat continues to claim lives in national parks amid record temperatures

Multiple fatalities have occurred in national parks like Death Valley and Grand Canyon due to suspected heatstroke.
Visitors are still flocking to parks despite warnings about dangerously high temperatures that can exceed 130 degrees Fahrenheit.
Officials advise staying close to air conditioning, hiking only in cooler morning hours, and watching for signs of heatstroke.
The recent deaths highlight the risks of extreme heat, which is expected to increase with climate change.
While trying to set records, tourists have underestimated the deadly threat of attempting outdoor activities in scorching weather.