Sentences with phrase «within polar ice caps»

Respiration by bacteria may have slightly increased levels of CO2 in pockets of air trapped within polar ice caps meaning that before human activity CO2 levels may have been even lower than previously thought.»

If it happened in the last 100,000 years, it might be possible someday to extract traces of its effects from deep within the polar ice caps.

Not exact matches

• The polar ice cap will completely disappear within 100 years.

Scientists with access to data from Navy submarines traversing underneath the North polar ice cap have warned that there is now a 75 percent chance that within five years the entire ice cap will completely disappear during the summer months.

Back in 2009, Al Gore boldly declared that «the entire north polar ice cap during some of the summer months could be completely ice - free within the next five to seven years.»

Serreze says if these warmer - than - average conditions persist, the Arctic polar ice cap could disappear in late summer within a couple of decades.

The rhetoric and predictions of global warming acolytes have been every bit as confusing in the United States, with former vice president and carbon - credit entrepreneur Al Gore telling an audience in a 2009 speech that «the entire north polar ice cap during some of the summer months could be completely ice - free within the next five to seven years.»

Al Gore, unfazed by his climate conviction, went on to claim «the entire north polar ice cap during some of the summer months will be completely ice - free within the next five to seven years,»

We are of course still in an ice age, as there are polar ice caps, but often people use the term to describe a period of more extensive glaciation, properly called a glacial period in the glacial / inter-glacial cycles within the current millions of years - old ice age.