Recent climate change brought on by human activities has weakened one the Earth's natural defenses against global warming. Atmospheric carbon dioxide is not being absorbed by the Southern Ocean as quickly as it once was, an international research team has found.
Scientists have observed the first evidence that the Southern Ocean’s ability to absorb the major greenhouse gas carbon dioxide, CO2, has weakened by about 15 percent per decade since 1981. The study was published today in the journal "Science."
"This is the first time that we’ve been able to say that climate change itself is responsible for the saturation of the Southern Ocean sink. This is serious," said lead author Dr. Corinne Le Quere of the University of East Anglia and the British Antarctic Survey.
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