Climate change is a problem for the future

In high heat, staying well hydrated and finding areas to cool down are important. 

• But those with access to air conditioning might not use it because of the high energy cost or large-scale power outages during heat waves or wildfires.
• The future climate in Africa will not be conducive to the use of even low-cost cooling systems such as “swamp coolers” as the tropical and coastal parts of Africa become more humid.

The evidence continues to mount that climate change is a problem humanity must tackle head-on.

Global heat waves are approaching and exceeding the critical environmental limit.

In hot, dry environments, the critical environmental limits aren't defined by wet-bulb temperatures because almost all the sweat the body produces evaporates, which cools the body.

The cutoffs are based ...