Sentences with phrase «old ice samples»

In a lab in Hutchison Hall, researchers analyze 12,000 - year - old ice samples for clues about the past and future of climate change.

Not exact matches

Though degraded, multitudes of ancient microbial DNA fragments, some 8 million years old, were suspended inside the ice samples.

The researchers determined from the isotope ratio that the Taylor Glacier samples were 120,000 years old, and validated the estimate by comparing the results to well - dated ice core measurements of atmospheric methane and oxygen from that same period.

Mackay estimated the ice could have been as old as 800,000 years, making it roughly the same age as the oldest ice ever core - sampled from anywhere in the world.

A team of scientists melted five samples of ice from Antarctica in hopes of reviving the oldest known frozen bacteria — millions of years older than any previously brought to life.

Sampling 7,000 - year - old ice cores as well as snowpack dating from 1969 through the mid-1990s, Barbante's team found that concentrations of the metals had risen almost sevenfold since the mid-1970s, when catalytic converters first came into widespread use.

These cylinders of ice let scientists sample old layers of the ice to better understand the climate of the past.

In the lab, ancient bacteria from ice samples 420,000 years old, retrieved from more than 2 miles (3 km) inside the ice sheet, have quickly shown signs of life.

We can predict a GLOBAL temperature within ---- degrees based on 600,000 year old ice core samples.

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Relax by the pool, sample homemade ice - cream waiting in an old - fashioned gelateria cart parked in the nearby shade and go on a boat ride aboard the villa's private boat.

Scientists dig deep into the rock and sand of the sea floor to sample Earth's climate history many millions of years ago, since the oldest ice cores go back only 850,000 years.

Wouldn't you need to know the age of a significant sample of the moss now covered by ice before drawing any conclusions from the fact that some very old moss has been exposed in the current melt?

The late Jaworowski objected to the deleting of outliers in the oldest ice cores, where drilling fluid was detected in some of the samples, leading to a large variability of CO2 levels.

Spreads jump from topic to topic, from rainforests to tree rings, oceanic mud samples to 800,000 - year - old ice cores.