News tagged with oxygen depletion

Carbon sequestration: Boon or burden

The idea to sequester carbon is gaining support as a way to avoid global warming. For example, the European Union plans to invest billions of Euros within the next ten years to develop carbon capture and storage ...

Jun 27, 2010
3.8 / 5 (16) 12 | with audio podcast

Dramatic expansion of dead zones in the oceans

Unchecked global warming would leave ocean dwellers gasping for breath. Dead zones are low-oxygen areas in the ocean where higher life forms such as fish, crabs and clams are not able to live. In shallow coastal regions, ...

Jan 25, 2009
3.1 / 5 (15) 19

Old concrete can protect nature

Usually we think of demolished concrete walls and floors as environmental contaminants, but in fact this material may turn out to be a valuable resource in nature protection work. This is the conclusion from ...

Aug 22, 2013
4.6 / 5 (8) 4

Hypoxia increases as climate warms

A new study of Pacific Ocean sediments off the coast of Chile has found that offshore waters experienced systematic oxygen depletion during the rapid warming of the Antarctic following the last "glacial maximum" period 20,000 ...

Dec 15, 2009
4.3 / 5 (6) 3

Rapid coral death by a deadly chain reaction

(Phys.org) -- Most people are fascinated by the colorful and exotic coral reefs, which form habitats with probably the largest biodiversity. But human civilisation is the top danger to these fragile ecosystems ...

May 24, 2012
4.2 / 5 (5) 6 | with audio podcast

Could oysters be used to clean up Chesapeake Bay?

Chronic water quality problems caused by agricultural and urban runoff, municipal wastewater, and atmospheric deposition from the burning of fossil fuels leads to oxygen depletion, loss of biodiversity, and harmful algal ...

Jan 21, 2011
3.8 / 5 (4) 0

Jurassic Park from a Swiss lake?

Ecological changes caused by humans affect natural biodiversity. For example, the eutrophication of Greifensee and Lake Constance in the 1970s and 1980s led to genetic changes in a species of water flea which ...

Mar 12, 2009
3.3 / 5 (3) 1

Seabed biodiversity in oxygen minimum zones

Some regions of the deep ocean floor support abundant populations of organisms, despite being overlain by water that contains very little oxygen, according to an international study led by scientists at the ...

Mar 24, 2010
5 / 5 (2) 0