It's way too hot to exercise. What can I do?

The question: How can I motivate myself to exercise in the heat? On hot days I just want to go home after work and sit in my air-conditioning.

http://www.theglobeandmail.com/life/health-and-fitness/ask-a-health-expert/its-way-too-hot-to-exercise-what-can-i-do/article13617506/?cmpid=rss1