An interesting way of explaining scientific certainty and climate change

There's a new IPCC report coming out and that, inevitably, leads to confusion about what scientists mean when they say things like "we are 95% certain that climate change is being caused by human behavior." The AP's Seth Borenstein used this as a jumping off platform to talk about certainty, and other (less popularly/politically controversial) ideas that also have 95% certainty attached to them. Read the rest