The physical processes that sculpt our Earth are dramatic — earthquakes, weather, volcanic eruptions, tectonic motions, climate change. Now, decades of research into the intricately intertwined system that links all oceans and freshwater, the atmosphere and our land is moving us forward toward a better understanding of our world. Here we watch it unfold.
Fish expend energy metabolizing drugs and personal products in fresh water.
Soil bacteria are staggeringly diverse, but a few types are abundant nearly everywhere.
Nitrogen isotopes show how nutrients leach out of septic tanks and into pond ecosystems.