Two headlines in USA Today and Reuters last week were very sobering: “Study: Global temperatures could rise 5 degrees by 2050,” and, even worse, “Global warming close to becoming irreversible.”
It’s not that I was surprised. I have known for years how urgent things are as far as our heated-up climate. Since I decided in 2003 that I needed to do more personally on this overarching survival issue, the world has seen a dramatic rise in the number and intensity of weather disasters, just as predicted by climate scientists years ago, though they've come sooner than most scientists expected.
What are the main points of these two articles?

