I'm a big fan of signing up for MOOCs (Massively Open Online Courses)! These days you can learn so many things online, for free! This isn't meant so much as a substitute for college, but a supplement for people of any age who are just looking to learn more about a topic. For example, I took differential equations 12 years ago, but I could brush up on my skills using a MOOC. I could also learn how to program, how to be a better teacher, how to solve the climate crisis using engineering, etc.
Well, my new friend John Cook of www.skepticalscience.com has invited me to participate in his MOOC, "Making Sense of Climate Science Denial" or Denial 101. I'll be creating a few lectures to contribute to the awesome program he has in store for students of the course. It will be coming out this coming March.
Sign up here: https://www.edx.org/course/uqx/uqx-denial101x-making-sense-climate-4371#.VCrt_rbTYi_
If you've never been to his site, I highly recommend it! My favorite link, though, was the 97 hours of consensus page he built this month: http://www.skepticalscience.com/nsh/?