Subduction and volcanic emissions compose a long-term, slow cycle for carbon and these elements.
Category: biogeochemistry
biogeochemistry
air pollution, biogeochemistry, environmental health, faculty, recycling, resource use, toxicology, water pollution
Arsenic and Old Lace
we are bathed in, and breathe, an atmosphere with an arsenic content vastly in excess of what we have experienced during our evolutionary history as a species.
agriculture, biogeochemistry, carbon sequestration, faculty, fossil fuels, plastics, recycling, waste
Rethinking Biodegradable
the storage of plant-derived carbon in everyday products that are landfilled may help sequester carbon from the atmosphere.
Methane: a synoptic view
Methane concentrations were relatively constant in the atmosphere until the beginning of the Industrial Revolution.
air pollution, Arctic, biogeochemistry, faculty, lakes and streams, toxicology, water pollution, wetlands
Legacy Mercury
The benefits of reducing mercury pollution deposited from the atmosphere are quickly reflected throughout the ecosystem.
Nitrogen in the Mississippi
It will take a long time to flush this past memory of nitrogen use out of the ecosystem.
Hydrogen Fuels
The hydrogen content of the atmosphere has increased 70% since the late 1800s,
Legacy Phosphorus
The past use of phosphorus fertilizers has left of legacy of pollution that we must consider if we are to have any success in cleaning up water quality.
agriculture, biogeochemistry, faculty, lakes and streams, land use, water, water pollution
The Source of the Yellow River
the color of rivers seen from space may provide a better index of the health of rivers than simple visual observations from land
How it all started
Pores and cracks in the rocks host microbial activity that feeds on hydrogen generated by volcanic activity,