A super salty spring in the Canadian Arctic provides insights key to detecting life on a distant ocean world.
Biogeosciences
Roadside Ditches Are Effective at Nitrogen Removal
Researchers compared the nitrogen removal potential by microbes in ditches that drained forested, urban, and agricultural lands and discovered that roadside ditches are important areas for removing nutrients.
Water Stress Controls the Capacity of the Terrestrial Carbon Sink
Despite increased photosynthetic activity at northern latitudes in recent decades, plant productivity in tropical zones suffers because of water limitations.
Life Teems Below the Surface
Scientists are resolving how plants, microbes, and lithology sculpt the structure of the critical zone.
Podcast: Putting Brains in Rock Machines
One geophysicist deviated from his usual work on paleomagnetism to study the magnetic remanence of human brains.
Extreme Life and Where to Find It
Life finds a way in the most extreme environments on Earth and sparks the imagination about far-off places where we may yet find it.
What Would Earth Be Like Without Life?
Workshop on a Cosmic Perspective of Earth: A Planet Permeated and Shaped by Life—Implications for Astrobiology; Tokyo, Japan, 13–15 September 2017
