Latest Biogeochemistry Stories
Urban waters record the salt in our food, cement in our sidewalks, University of Maryland scientist says.
Two billion years ago the Earth system was recovering from perhaps the single-most profound modification of its surface environments: the oxygenation of the atmosphere and oceans.
Should the periodic table bear a warning label in the 21st century or be revised with a lesson about elemental supply and demand?
The world's largest database on plants' functional properties, or traits, has been pub-lished. Scientists compiled three million traits for 69,000 out of the world's ~300,000 plant species.
A coupled-cycles framework is essential to balancing human needs with the health of the planet.
In the search for life on Mars or any planet, there is much more than the presence of carbon and oxygen to consider.
Phosphorus is an essential element in production agriculture, however fertilizer runoff and wastewater discharge have led to massive eutrophication problems in water bodies worldwide.
What do the Gulf of Mexico's "dead zone," global climate change, and acid rain have in common? They're all a result of human impacts to Earth's biology, chemistry and geology, and the natural cycles that involve all three.
Dr. Craig R. Smith, oceanography professor at the University of Hawai'i at MÄnoa, recently published a paper in Marine Ecology Progress Series titled, "Biogeochemistry of a deep-sea whale fall: sulfate, reduction, sulfide efflux and methanogenesis."
U.S.-led scientists have found that an ecosystem below an Antarctic glacier has survived millions of years by using sulfur and iron compounds for growth. Co-led by Montana State University Professor John Priscu and Jill Mikucki of Dartmouth College, the scientists said the ecosystem lives without light or oxygen in a pool of brine trapped below Taylor Glacier, next to frozen Lake Bonney in eastern Antarctica. Priscu said the ecosystem contains a diversity of bacteria that thrive in cold,...
- totally perplexed and mixed up.