Over the past 200 years, the population of the United States has grown more than 40-fold to an estimated 328 million, with 81% of the population living in an urban area.
articles
A Tiny Arctic Shrub Reveals Secrets of Plant Growth on Svalbard
It’s not easy being a tiny willow on the wind-and snow-blasted islands of the Norwegian territory of Svalbard.
Human Activity Threatens 50 Billion Years of Vertebrate Evolutionary History
A new study maps for the first time the evolutionary history of the world's terrestrial vertebrates: amphibians, birds, mammals and reptiles.
Philippine Volcanic Eruption Could Prompt El Nino Warming Next Winter
Climatologists have found that if an ongoing Philippine volcanic eruption becomes more violent, the gases released are likely to produce an El Nino event during the 2020-21 winter, a more intense polar vortex and warming across Eurasia.
Discovery Of Ancient Super-Eruptions Indicates The Yellowstone Hotspot May Be Waning
Throughout Earth’s long history, volcanic super-eruptions have been some of the most extreme events ever to affect our planet’s rugged surface.
NASA Finds Heavy Rainfall in Tropical Storm Cristobal
The third tropical cyclone of the Atlantic Ocean basin has been generating large amounts of rainfall over Mexico’s Yucatan and parts of Central America.