While vast volumes of fresh groundwater are located offshore, pumping these reserves can also deplete on-shore aquifers and cause land subsidence.
Oceans
Posted inResearch Spotlights
When the River Meets the Sea: Estuary Sediments and Hypoxia
Scientists know that low-oxygen dead zones are growing worldwide. New research sheds light on what that will mean for estuary systems if trends continue.
Posted inResearch Spotlights
A 192,000-Year Record of Northwest African Fire History
Biomarker analyses from an offshore sediment core suggest that increased fire occurrence around 55,000 years ago coincided with increased fuel loads and human settlement in this region.
Posted inScience Updates
Project VoiLA: Volatile Recycling in the Lesser Antilles
Deep water cycle studies have largely focused on subduction of lithosphere formed at fast spreading ridges. However, oceanic plates are more likely to become hydrated as spreading rate decreases.
Posted inResearch Spotlights
Oceanic “Pump” Sends Small Carbon Particles to Twilight Zone
Underwater gliders provide unprecedented, daily data that reveal new insights into how carbon gets from the atmosphere to the deep ocean.
Posted inResearch Spotlights
Improving Estimates of Long-Term Climate Sensitivity
New modeling casts doubt on the suitability of running experiments with fixed sea surface temperatures to understand the effects of cloud aggregation on Earth’s climate.
Posted inScience Updates
Strategies for Conducting 21st Century Oceanographic Research
Planning a research cruise requires extensive coordination among research teams, ship operators, funding agencies, logistics companies, and international government entities.
Posted inNews
Podcast: Rifts Beneath the Ocean Floor
In the latest episode of its Centennial series, AGU’s Third Pod from the Sun features the pioneering work of a deep-sea explorer.
Posted inEditors' Highlights
Baltic Bacterial Blooms Over the Millennia
Eutrophication not only is a present-day anthropogenic phenomenon in the southern Baltic but also occurred over the past few millennia, with cyanobacterial blooms during times of climate warming.
Posted inResearch Spotlights
Eddies Influence Productivity in the Subtropical Open Ocean
Ocean eddies may help recycle nutrients within giant current systems that encircle “desert” surface waters.