Gulf Coast “Dead Zone” Overshadowed by other frightening reports about the climate, the National Oceanic and Atmospheric Administration earlier this month announced the discovery of a low-oxygen zone stretching from Texas to the mouth of the Mississippi River that is caused by human activity, and is harming marine life across the Gulf of Mexico. Scientists from Louisiana State [...]


Companies Responsible for Massive Dead Zone in Gulf of Mexico

A new report, released today by Mighty Earth, identifies the companies responsible for the widespread manure and fertilizer pollution contaminating water from the Heartland to the Gulf. Much of this pollution comes from the vast quantities of corn and soy used to raise meat animals, and has caused one of the largest Dead Zones on [...]

Toxic algal blooms

Beneath their prehistoric-looking shells, turtles conceal an extraordinary ability to hold their breath underwater, going without oxygen for hours, even months, at a time. This cellular-level capacity to survive underwater also helps turtles resist the effects of environmental pollution from harmful algal blooms (HABs), toxic events also commonly dubbed “red tides,” according to studies by [...]

Dissolved oxygen level in world oceans declining 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. Researchers at Georgia Institute of Technology looked at a historic dataset of ocean information [...]

Extreme low-oxygen Eddies in the Atlantic produce Greenhouse Gases

Oxygen in the seawater is not only vital to most marine organisms, its concentrations also affect the chemistry of the ocean and that of the atmosphere above. In oceanic regions with very little oxygen, for example, large amounts of the potent greenhouse gas nitrous oxide, also called laughing gas, are produced via biogeochemical processes and [...]

Acidified ocean water widespread along North American West Coast

A three-year survey of the California Current System along the West Coast of the United States found persistent, highly acidified water throughout this ecologically critical nearshore habitat, with “hotspots” of pH measurements as low as any oceanic surface waters in the world. The researchers say that conditions will continue to worsen because the atmospheric carbon [...]

Scientists have just detected a major change to the Earth’s oceans linked to a warming climate

A large research synthesis, published in one of the world’s most influential scientific journals, has detected a decline in the amount of dissolved oxygen in oceans around the world — a long-predicted result of climate change that could have severe consequences for marine organisms if it continues. The paper, published Wednesday in the journal Nature [...]