The annual question 2013 from agent John Brockman and the fame site Edge.org is again a challenging one. Browse through the previous ones and keep an eye on the answers to What indeed should we be worried about? from major scientists, thinkers, philosophers and artists from (mostly) the Western side of this world.
So as the context on Edge.org states: "We worry because we are built to anticipate the future. Nothing can stop us from worrying, but science can teach us how to worry better, and when to stop worrying. Tell us something that worries you (for scientific reasons), but doesn't seem to be on the popular radar yet—and why it should be. Or tell us something that you have stopped worrying about, even if others do, and why it should be taken off the radar."
Photo credit: Clematis 2013 by Katinka Matson