We watched a TEDtalk from an oceanography professor at Stanford called Discovering Ancient Climates in Oceans and Ice (linked on the Assignments page). He talks about the kind of data that is used to reconstruct past climates and how they are collected.
Then we went a little further into the Chapter 19 - Module 63 PowerPoint about the evidence for global warming.
Then we went a little further into the Chapter 19 - Module 63 PowerPoint about the evidence for global warming.