We now stand at a crossroads. However unintentional, humans are responsible for climate change. It is time we own up to that and deal with the problem in earnest. For what we do today will forever determine our future trajectory. Could this crisis be the impetus that moves us to the next stage of civilization or to extinction?
Though both dark matter and dinosaurs are independently fascinating, you might reasonably assume that this unseen physical substance and this popular biological icon are entirely unrelated. And this might well be the case. But the Universe is by definition a single entity and in principle its components interact.
The movie adaptation of A Walk in the Woods is on solid footing with Bill Bryson's chronicle of the struggles, discomforts, and deprivations he endured -- and gratifications he derived -- as he explored the Appalachian Trail in the spring and summer of 1996. The book conveys the trepidations he experienced -- the perils encountered, and imagined.
Josh Rosenau and I have just returned from NCSE's annual rafting trip down the Colorado River and through the spectacular geology and biology of Grand Canyon. Our two motorized boats were packed with an eclectic mix of scientists, teachers, NCSE members, and people who wanted the ultimate experience in Grand Canyon in the company of those who love science.