If the cosmos is a numerical simulation, there ought to be clues in the spectrum of high energy cosmic rays, say theorists
Even with a terrible recession and a natural-gas bonanza, the U.S. isn’t cutting emissions fast enough.
Saying that half of all the 2009 stimulus-supported clean energy companies went out of business is plain wrong.
Better technology and high battery costs have revived interest in hydrogen-guzzling vehicles.
Getting people to eat well and exercise is the biggest unsolved problem in health care.
A true AI might ruin the world—but that assumes it’s possible at all.
The website for the Affordable Care Act was doomed by an inordinately complex setup that tried to link disparate databases in real time.
The effects of atmospheric carbon linger for centuries, so historical emissions totals are relevant context for the global climate policy debate.