In a controlled experiment, researchers diverted wastewater from an advanced treatment facility into a healthy stream and monitored the unfolding ecological effects.
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Posted inScience Updates
Our Evolving Understanding of Biological Carbon Export
The array of processes and organisms that make up the biological carbon pump has immense influence on Earth’s carbon cycle and climate. But there’s still much to learn about how the pump works.
Posted inResearch Spotlights
Current Agriculture Adds More Phosphorus to Streams Than to Lakes
Improved agricultural nutrient management could improve stream water quality by reducing phosphorus levels, but rising temperatures and rainfall due to climate change might offset improvements.
Posted inResearch Spotlights
Biogeochemical Insights from a Major Amazonian River
Underrepresented in global carbon budgets, tropical rivers like Brazil’s Tocantins are in need of study to establish their baseline characteristics in the face of increasing global change.
Posted inNews
Scientists Discover a Way of Forming Suspended Layers of Sediment
Laboratory experiments suggest that underwater gas eruptions—due to the venting of gas hydrates, for example—could trigger the formation of layers of suspended sediment in the ocean.
Posted inNews
Ambidextrous Microbes May Pump Out CO2 as Temperatures Rise
Certain microbes that engage in both photosynthesis and predation are more likely to do the latter as the planet warms, resulting in a net release of carbon dioxide.
Posted inNews
Mosses Play Key Roles in Ecosystems from Tropics to Tundra
A global survey of mosses growing on soil found that the somewhat underappreciated plants cover a vast area and perform tasks such as sequestering carbon.
Posted inNews
Penguin Poop May Flush Iron into the Southern Ocean
Nutrients from the seabirds’ guano fuels the growth of carbon-storing phytoplankton, but penguin populations have plunged in the past 4 decades.
Posted inNews
Harpy Eagles Concentrate Precious Nutrients in the Amazon
Amazon soils are usually low in the nutrients that plants covet, but harpy eagles can create local hot spots with their poop and prey.
Posted inResearch Spotlights
Tropical Cyclone Triggered Record Algal Bloom in the South Pacific
In 2019, Tropical Cyclone Oma hovered over the Coral Sea in the South Pacific, leaving a massive algae bloom in its wake.