Biogeosciences Archives - Page 2 of 36 - Eos

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Researchers track dissolved organic carbon in high-elevation lakes to understand how lakes have been affected by acid rain and a changing climate.

Research Spotlight 11 July 2018

Effects of Acid Rain, Climate Change on Freshwater Lakes

New England lakes weathered years of acid rain. A new study tracks how they are faring after 30 years of regulation and how climate change factors into the equation.

Drawing of sea life that flourished after the Ordovician Period ended with a mass extinction event 445 million years ago.

News 11 July 2018

Tiny Algae May Have Prompted a Mass Extinction

Dead algae sinking to the ocean floor may have sequestered carbon 445 million years ago, triggering the glaciation that accompanied the Late Ordovician mass extinction.

https://doi.org/10.1029/2018GL077219

Editors' Highlights 6 July 2018

Nutrients May Change Flavor of “Meadow Tea” in Lakes

Lakes in the US and Europe have been getting more tea-colored over the past 30 years, and this “browning” trend may increase nutrient levels and affect lake water quality.

Researchers examine the impact of increased precipitation on lake water clarity.

Research Spotlight 2 July 2018

Dark and Stormy: How More Rainfall Leads to Warm and Murky Lakes

Reduced clarity in two northeastern Pennsylvania lakes has resulted in warmer surface water and cooler bottom water despite stable regional air temperatures during the past 3 decades.

Researchers analyze just how much silica is being transported across Earth’s oceans by phytoplankton

Research Spotlight 29 June 2018

The Tiny Organisms That Transport Silica Across Earth’s Oceans

Phaeodarians play a major role in marine nutrient cycle.

Researchers examine the role of upper estuaries as blue carbon sinks

Research Spotlight 29 June 2018

Upper Estuaries Found to Be Significant Blue Carbon Sink

Inland from the seagrass and salt marsh ecosystems that border the ocean, upper estuaries store more carbon than previously realized and could play an important role in mitigating climate change.

A sudden monsoon downpour sweeps across a desert valley in Arizona.

Feature 27 June 2018

When Environmental Forces Collide

Multiple factors often interact to amplify the effects of severe storms, droughts, and other extreme water-related events.

Researchers use remote sensing to track how vegetation affects dissolved organic carbon in waterways

Research Spotlight 22 June 2018

Refining Remote Sensing of Dissolved Organic Carbon in Waterways

Nearby vegetation affects the color of organic matter, a new study finds.

Atmospheric Sciences

https://doi.org/10.1029/2018GH000136

Editors' Highlights 21 June 2018

New Strategies to Protect People from Smoke During Wildfires

Satellite measurements coupled with inexpensive air quality monitors could help protect humans from smoke particulates during wildfire events.

A photograph taken from Alvin, a manned deep-ocean research submersible, collecting sediment cores at the ocean floor of the Dorado Outcrop in 2014.

Research Spotlight 15 June 2018

Life and Death in the Deepest Depths of the Seafloor

Lacking light and energy, under-seafloor microbes rely on ancient organic materials to survive.