According to the UN and other organizations: To PREVENT the heatwaves, it is crucial that the amount of CO2 released globally is reduced. All nations need to tighten laws to lower CO2 production. This means you need to VOTE for the right party. To MITIGATE the effects of the heatwaves, countries can do many things: plant trees in towns (as they lower temperatures due to evaporation and shade), improve architecture etc. That may not help too much though, as the intensity and length of the heatwaves will continue to increase over the next decades. So reduction of CO2 released is the best bet.

I have the same an I live in Alabama. Although I’m pretty obese too, come to think of it.