Known for precise, planetary-scale measurements, NASA is improving its decades-long effort to observe and understand sea levels to help communities prepare for the effects of Earth’s rising ocean.
Oceans
Ocean Acidification May Drive Diatom Decline
Diatoms contribute to global oxygen production, marine food webs, and carbon sequestration, but scientists predict that diatom populations will decline due to ocean acidification associated with climate change.
Algal Mats May Be a Key to the Arctic Food Web
Melt ponds in sea ice have thriving algal communities with startlingly high levels of photosynthetic activity.
Without Deep Emissions Cuts, Marine Species Face Mass Extinction
On the basis of how much oxygen marine species need and how much is available, researchers predict extinctions comparable to those at the end of the Permian under a business-as-usual emissions scenario.
Circling Antarctica to Unveil the Bed Below Its Icy Edge
An international initiative aims to collect a comprehensive airborne data set from the Antarctic Ice Sheet margin to better estimate ice discharge and sea level contributions today and in the future.
Peeking at Peatlands: Satellite Data Fuel New Findings
Researchers are combining hard-to-get field measurements with satellite imagery to gain new insight into where peatlands are and how they work.
Loss of Ocean Memory Has Implications from Forecasting to Conservation
New research indicates climate change may thin the mixed layer and contribute to a reduction of sea surface temperature anomalies.
“Landslide Graveyard” Holds Clues to Long-Term Tsunami Trends
A new project looks to unearth information about and learn from ancient underwater landslides buried deep beneath the seafloor to support New Zealand’s resilience to natural hazards.
Planting Wetlands Could Help Stave Off Climate Catastrophe
A shift in priority and approach to wetland restoration could reduce atmospheric carbon.
Active Hurricane Season Expected in the Atlantic Ocean
La Niña conditions and warm ocean temperatures have set the stage for another busy tropical storm year.