S. Maturin wrote:
LET ME TRY ONCE MORE:
This babbling post betrays your pseudo & false sense of reality: "When it ended, for a varity of reasons." (STATE THOSE varity(sic) OF REASONS)
Temp increased over centuries and the land glaciers melted. Mostly. Remnants are around..
but this time frame of centuries is, in the current problem cut down to only decades.. "..only decades.. REALLY? HOW IN HELL DID YOU ARRIVE AT THAT?
time is the major problem.. No time to adapt.. If that would be possible." YOU are an ALARMIST- ALGORE is proud of you, son.
LET ME TRY ONCE MORE: br br br This babbling pos... (
show quote)
//www.livescience.com/49774-ocean-co2-ended-ice-age.html
Ended>>>>>>>>>>>Did Ocean's Big Burps End Last Ice Age?
By Becky Oskin, Contributing Writer | February 11, 2015 01:00pm ET
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Did Ocean's Big Burps End Last Ice Age?
Credit: SurangaSL/Shutterstock.com
A massive outpouring of carbon dioxide from the deep ocean may have helped end the last ice age, scientists report today.
There is strong evidence that changes in Earth's orbit set the pace of the planet's ice ages, by altering how much sunlight reaches the Northern Hemisphere. Yet, carbon dioxide levels in the atmosphere also wobble with the advance and retreat of massive ice sheets, according to observations of ice cores and old ocean sediments. Carbon dioxide levels are lower during an ice age and higher when an ice age ends.
Now, scientists have documented a source for the massive exhalations of potent climate-altering gas seen at the end of the last ice age, about 16,000 years ago. [Photos: The 8 Coldest Places on Earth]
The oceans were leaking carbon dioxide to the atmosphere," said study co-author Gavin Foster from the University of Southampton in the United Kingdom.
The researchers, led by Miguel Angel Martínez-Botíz of Britain’s National Oceanography Center in Southampton, looked at ice-age seafloor sediments in two regions where ocean currents force deep- ocean water to the surface. They examined the shells of single-celled microbes called foraminifera, which preserve the ratio of chemicals in seawater as they grow. A certain chemical ratio involving boron is a proxy for the carbon dioxide concentration in seawater thousands of years ago, when the microbes lived and died.
The samples tested in the study come from two seafloor drilling sites. One is located in the southern Atlantic Ocean, midway between South America and Africa, and the other is offshore Ecuador on the underwater Carnegie Ridge.
Very high concentrations of dissolved carbon dioxide suddenly appeared in surface waters of the southern Atlantic Ocean and the eastern equatorial Pacific Ocean at the end of the last ice age, the researchers said today (Feb. 11) in the journal Nature. Surface waters in both regions show a dramatic rise in dissolved carbon dioxide levels at the same time as the recorded rise in atmospheric carbon dioxide in ice cores, the researchers report.
During the early Holocene Epoch, about 10,000 years ago, the carbon dioxide exhalations continued, yet gas levels stabilized in the atmosphere, according to the new study. This suggests that something starting sucking up the gas, perhaps re-growing forests or expanding peat bogs on land, the researchers said.