"Say goodbye to old man winter... say hello to sweet spring time".... Tim McGraw sings on his new album "Let It Go"... But wait, I am here in Dallas, our first southern stop on our southern bus tour and am jogging outside in 40 degree freezing cold -- and of course listening to Tim's new album and smarting from the irony. Time magazine had it right when they described the planet's illness from global warming as being sick with the flu and going from night shivers to a cold sweat. That is exactly what is happening. 70 degrees in January and 40 degrees in April. That is exactly why Sheryl Crow and I are in a biodiesel bus going thru the Southeast visiting college campuses to talk about the urgency of this issue and how everyone... everyone.... has to start doing something. I would write more, but I have to go run warm water over my hands and thaw out from my run.