Mongabay: One of the richest ecosystems on the planet may not survive a hotter climate without human help, according to a sobering new paper in the open source journal PLoS ONE. Although little-studied compared to lowland rainforests, the cloud forests of the Andes are known to harbor explosions of life, including thousands of species found nowhere else. Many of these species-from airy ferns to beautiful orchids to tiny frogs-thrive in small ranges that are temperature-dependent. But what happens when the...