That link doesn’t work. Do you have the link for the video, not the playlist?
If all else fails, Google "Milankovitch Cycle" and read the Wiki on it. If you have not heard this before, you will be astounded at the clarity and simplicity of the man's discovery. Yet, it seems that no "HS Science Teacher" has even heard of it as they pour out Leftist "Earth Science" to future Obamanauts.
I have a PowerPoint I do for local groups, complete with videos. I even have a model. Yet, I am greeted as if I were some sort of dangerous heretic. Global Warming is now an urban legend.