I found this very interesting. It is the University of Alabama at Huntsville Satellite Temperature Record. (Website link.) The reason it only goes back to 1979 is that this is the limited time period during which the technology has been available. There’s also an explanation of how the data is collected and calibrated. The site is run by Dr. Roy Spencer and John Christy. As I read it, they currently show warming trends of +0.19 (land) and +0.08 (ocean) centigrade per decade.
How easy it is to make people believe a lie, and how hard it is to undo that work again! (Mark Twain)
Piece of Mindful 