New research reviews how our atmosphere’s most abundant element cycles through the Arctic Ocean—and how climate change could affect the process.
nitrogen
Reactive Barriers Could Keep Nitrate out of the Atlantic
Microbes in mulch scrub nitrate from groundwater before it flows to the sea.
Northern Permafrost Region Emits More Greenhouse Gases Than It Captures
Permafrost underlies a quarter of the Northern Hemisphere. A comprehensive analysis shows that the area may have shifted from a sink to a source of greenhouse gases, bringing a longtime prediction to fruition.
The Unexplored Microbial Life in Subterranean Estuaries
A new study reveals that microbial life in subterranean estuaries is threatened by anthropogenic activities.
Using Satellite Observations for Attribution of Radiation Changes
Analysis of infrared satellite measurements identifies the climate response to an increase in greenhouse gases in the atmosphere.
التربة المكهربة تزيد نمو النباتات
خمسة أيام من الكهرباء المنخفضة الجهد الموجهة إلى جذور النباتات الناشئة عززت نموها بأكثر من 50 بالمئة.
Researchers Compare Observations Versus Modeling of Coastal Carbon Cycle
While storing carbon dioxide, the coastal ocean also releases methane and nitrous oxide. New research shows that understanding the impact of coastal oceans on climate requires more research into these fluxes and how they counteract each other.
Volcanic Lightning May Have Retooled the Nitrogen Needed for Life
Early Earth’s volcanoes could have spurred lightning that transformed atmospheric nitrogen, creating molecules that would have been necessary for life to emerge.
What Happens to Nutrients After They Leave Agricultural Fields?
To better quantify the fate of nutrients after they are released from agricultural fields, scientists examine storage and nitrate export regimes in agricultural hydrology systems.
Electrified Soil Powers Plant Growth
Five days of low-power electricity directed to the roots of young plants boosted their growth by more than 50%.