Decades of Data on World’s Oceans Reveal a Troubling Oxygen Decline
By Takamitsu Ito, Shoshiro Minobe, Matthew C. Long and Curtis Deutsch – A new analysis of decades of data on oceans across the globe has revealed that the amount of dissolved oxygen contained in the water – an important measure of ocean health – has been declining for more than 20 years.
The majority of the oxygen in the ocean is absorbed from the atmosphere at the surface or created by photosynthesizing phytoplankton. Ocean currents then mix that more highly oxygenated water with subsurface water. But rising ocean water temperatures near the surface have made it more buoyant and harder for the warmer surface waters to mix downward with the cooler subsurface waters. Melting polar ice has added more freshwater to the ocean surface – another factor that hampers the natural mixing and leads to increased ocean more> stratification.
Falling oxygen levels in water have the potential to impact the habitat of marine organisms worldwide and in recent years led to more frequent “hypoxic events” that killed or displaced populations of fish, crabs and many other organisms. more> https://goo.gl/3F17TB
- A Bipartisan Approach to Cyber, Laura Diamond
- PowerPoint & LED Projector Enable New Technique for Self-Folding Origami, John Toon
- Smoke from Wildfires Can Have Lasting Climate Impact, Yuzhong Zhang, Haviland Forrister, Jiumeng Liu, Jack Dibb, Bruce Anderson, Joshua P. Schwarz, Anne E. Perring, Jose L. Jimenez, Pedro Campuzano-Jost, Yuhang Wang, Athanasios Nenes and Rodney J. Weber.
- Network Traffic Provides Early Indication of Malware Infection, John Toon
- Combination of Features Produces New Android Vulnerability, John Toon
- Georgia Tech launches $1 million retail technology initiative at ATDC, Péralte Paul
- Virtual Top Hats Allow Swarming Robots to Fly in Tight Formation, Jason Maderer
- Rising Temperatures Threaten Stability of Tibetan Alpine Grasslands, John Toon
- High Temperature Step-by-Step Process Makes Graphene from Ethene, John Toon
- Researchers Find New Source of Dangerous Electrical Instability in the Heart, John Toon
- Innovation Soars at The Hangar in Tech Square, Laura Diamond
- In Search of the Goldilocks of Black Holes, A. Maureen Rouhi
- New Georgia Tech Research May Help Combat Abusive Online Comments, David Mitchell