Marine life is endangered by carbon emissions. This is supported by studies of two British and Australian researchers who demonstrated a lot of organic material buried in the sediment layer discovered oxygen carried by 85 million years old receive.
Excavated using a sample of the material from the seabed in the western region of Africa, two researchers studied sediment layers from the late Cretaceous (85 million years old) for 400,000 years. As a result, they found that many organic substances (marine life) are buried in layers of sediment oxygen.
"Our study, the existence of weapons of mass destruction shows in the ocean, when the soil is required in the process of the greenhouse gas carbon dioxide in the atmosphere and the temperature increase due to the decrease in oxygen for the animals in the water," said Kennedy, one of the researchers.
Kennedy said that the amount of carbon dioxide into the atmosphere than double in the next 50 years will be a devastating blow to the marine ecosystem to be. Mass extinctions of the prehistoric underwater world could be a warning. As the greenhouse effect may lead to the same thing.
Currently, the dead zone, a region with a minimal amount of oxygen, almost impossible, to sustain life, and more popular in different places and oceans around the world. Total area of oxygen in the seas more than 240 thousand square kilometers. Areas covered in several countries. The largest area in Mississippi, United States, which reaches more than 22,000 square kilometers.
"In many areas, water, oxygen and elevated carbon dioxide, temperature, pollution will be withheld from agricultural waste and other triggers," he said. Dead zones can occur naturally. However, the pace of human activities in the region make it faster.
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