Chemical signatures of marine organisms reveal that seasonal sea ice, not a massive ice shelf, persisted in the southern Arctic Ocean for 750,000 years.
biogeochemistry
Posted inResearch Spotlights
地震如何改变湖泊微生物群落
提示：地震发生后，湖泊的地质、化学和生物成分会重新配置。一项新的研究深入探讨了地震变化对喜马拉雅地区措普湖的影响。
Posted inResearch Spotlights
How Earthquakes Shake Up Microbial Lake Communities
After an earthquake, a lake’s geological, chemical, and biological components get reconfigured. A new study dives into the effects of seismic shifts on the Himalayas’ Lake Cuopu.
Posted inResearch Spotlights
Tracing Black Carbon’s Journey to the Ocean
Scientists surveyed a trio of estuaries in pursuit of a missing source of oceanic dissolved black carbon.
Posted inResearch Spotlights
Robotic Floats Quantify Sinking Carbon in the Southern Ocean
An estimated 2.69 billion tons of carbon are exported to the deep sea every year from the Southern Ocean.
Posted inResearch Spotlights
Seaweed Surges May Alter Arctic Fjord Carbon Dynamics
Climate change–accelerated seaweed growth could cause seaweed-dependent microbes to proliferate and consume more oxygen, leading to a rise in oxygen-starved zones.
Posted inNews
A Great Whale Conveyor Belt Transports Nutrients Across Oceans
Baleen whales shift huge amounts of nutrients, including nitrogen, from high-latitude feeding waters to tropical breeding areas.
Posted inFeatures
Could Bubbling Oxygen Revitalize Dying Coastal Seas?
Reoxygenation approaches have shown some success in lakes, but their potential risks must be examined carefully before they’re implemented as solutions to improve the health of coastal waters.
Posted inNews
Tea Leaves Remove Lead from Water
Surface and chemical properties of tea leaves may help explain the correlation between tea consumption and lower incidences of heart disease, high blood pressure, and stroke.