More than two-thirds of life on Earth died off some 252 million years ago, in the largest mass extinction event in Earth's history.
Earth Sciences
Dec 10, 2018
4
18
All animals, whether they live on land or in the water, require oxygen to breathe. But today the world's oceans are losing oxygen, due to a combination of rising temperatures and changing ocean currents. Both factors are ...
Earth Sciences
Nov 13, 2018
0
12
Scientists are studying the oxygen-deprived waters of the Black Sea to help answer questions about the deepest parts of the ocean and Earth's climate.
Earth Sciences
Apr 5, 2018
0
17
The Labrador Sea in the North Atlantic is one of the few areas in the world ocean where cold, saline seawater sinks to large depths and forms deep water. This convection process also transports oxygen into the deep sea. A ...
Earth Sciences
Sep 5, 2017
0
4
Fish are expected to shrink in size by 20 to 30 per cent if ocean temperatures continue to climb due to climate change.
Ecology
Aug 21, 2017
2
94
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 ...
Earth Sciences
Jul 7, 2017
0
39
Though they may seem rock solid, the ancient sedimentary rocks called iron formations - the world's chief economic source of iron ore - were once dissolved in seawater. How did that iron go from a dissolved state to banded ...
Earth Sciences
Apr 10, 2017
0
9
Research published this week by an international team of scientists, including the British Antarctic Survey, provides new insights into how carbon dioxide changed in the oceans surrounding Antarctica during glacial periods.
Earth Sciences
Mar 31, 2016
0
11
Falling ocean oxygen levels due to rising temperatures and influence from human activities such as agrochemical use is an increasingly widespread problem. Considering that the sea floors have taken more than 1,000 years to ...
Earth Sciences
Apr 9, 2015
2
76
It is possible to measure oxygen concentrations in sea water in the remote past, a study published this month in Nature Geoscience demonstrates.
Earth Sciences
Jan 30, 2015
1
31
