At left is Peru’s Qori Kalis glacier in 1978, when it was still healthy. At right is the much-reduced glacier in 2000. A lake of meltwater now occupies what 22 years earlier had been a deep field of flowing ice.
Credit: Ohio State Univ.
Eruption early in human prehistory may have been more whimper than bang
Greed may breed financial fitness, but evolution allows unselfishness to survive
Fine-tuning of technique used in other animals could enable personalized medicine
Simulation suggests long-term effect on sea level not as dire as some predictions
Coverage of the 2013 American Association for the Advancement of Science meeting
The Year in Science 2012
Three-part series on the scientific struggle to explain the conscious self
Tables of contents, columns and FAQs on SN Prime for iPad