For the majority of people today, it's hard to live without AC. Thanks to AC, more people are living in the south. However, today's homes aren't made for cross-ventilation, and summers are getting hotter and hotter.
To make matters worse, air conditioning still uses a lot of power. It brings in the indoor heat (or cold) and uses energy to push it outdoors. At this point, the US consumes more electricity for AC than one billion people in Africa use for all their needs.
The good news is that people can do much more to make their AC run more efficiently. Here's what you need to know...