Climate Change is a very "hot" (and, admittedly, controversial) topic that easily engages students. This site, from the Beringia Interpretative Centre in Canada's Yukon, gives plenty of information about how climate has changed since the ice ages. It covers: forces that cause climate change; changes that occur to plants and animals during climate change; how to read climate changes with tree rings, and many others. Very clear drawings and photos help support the text.
Yukon Beringia Interpretive Centre
• Pictures and/or Illustrations
• High School Middle School