To get serious analyses of hurricanes and oil slicks, see Jeff Masters' blog. To get serious discussions of worst-case scenario thinking, see Bruce Schneier's blog. To get enough Vitamin D, don't read any blogs and go outside instead.
Special 10th anniversary edition of WHAT IF?—revised and annotated with brand-new illustrations and answers to important questions you never thought to ask—coming from November 2024. Preorder here!