This is not a joke: The sky is falling. Or technically, the height of clouds, the average of which decreased about 1 percent from 2000 to 2010. Researchers at the University of Auckland, who collected the data, attributed the change to a drop in the number of clouds formed at high altitudes.
But, contra Chicken Little, this isn’t bad news. Clouds hanging lower in the atmosphere could help offset global warming in a negative feedback loop. The researchers who are tracking the clouds’ height say they need another round of data collection to see if the trend holds.
Shrinking Sky! Cloud Tops Dropping Closer to Earth, NASA Satellite Finds, LiveScience.