Seas Losing Ability To Absorb CO2
Do you all know that Earth's Environment itself saves it from the Environment Pollution? All natural things like rocks,seas,oceans etc. prevent our nature by their various different phenomenons. If the whole world plays their role in just balancing the Environment Balance that is balanced by nature itself, then we can think about prevention of Earth's Environment.
Emissions from the fossil fuels began soaring in the 1950s, and oceans largely kept up.
But the growth in the intake rate has slowed since the 1980s.The Earth's oceans, which have absorbed carbon dioxide from emissions since the dawn of the industrial era, have recently grown less efficient at sopping it up, new research suggests.
Emissions from the burning of fossil fuels began soaring in the 1950s, and oceans largely kept up, scientists say. But the growth in the intake rate has slowed since the 1980s, and markedly so since 2ooo, the authors of a study write in a report in issue of nature. The research suggests that the seas cannot indefinitely be considered a reliable "carbon sink" as humans gases linked to global warming.
The slowdown in the rise of the absorption rate resulted from a gradual change in the oceans' chemistry, the study found . '' The more carbon dioxide the ocean absorbs,the more acidic it becomes and the less carbon dioxide it can absorb, " said the study's lead author, Samar Khatiwala, a research scientist at the Lamont-Doherty Earth observatory of Columbia University and a professor at the Georgia Institute of Tecchnology.
" It's a small change in absolute terms, '' Khatiwala said. ''What I think is fairly clear and important in the long term is the trend toward lower values, which implies that more of the the emissions will remain in the atmosphere.''
To calculate the slow-down , Khatiwala created a mathematical model using measurements of seawater collected over the past 20 years. Even as human-generated eissions of carbon dioxide increase, the oceans' uptake rate growth appears to have dropped by 10 % from 2000 to 2007, he said.
The last major research effort to measure industrial carbon uptake in the oceans was published in a 2004 Science study led by christopher sabine. His methodology was different but arrived at similar conclusions.
Sabine used CO2 measurements taken by more than 100 ships to come up with a single figure: the oceans' total industrial carbon uptake until 1994. Khatiwala 's proach provides ocean carbon storage estimates from 1765 to 2008.
Thus, at last we all can say that nature itself plays a important role for protecting our Environment from Pollution.
