Sentences with phrase «ice core measurements»

The CO2 in short gets depleted in ice core measurements and has not been corrected properly.
Combined with ice core measurements from Greenland and Antarctica, this tells us that atmospheric CO2 levels are the highest in over 15 million years (Tripati 2009).
A.D. 1700...» which are at variance with multiple direct CO2 ice core measurements from Greenland and Antarctica, and there wasn't significant anthropogenic industrial fossil fuel consumption and CO2 emissions at those dates.
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.
The graph is created by Andy Jacobson from the NOAA and includes a global map displaying where the measurements are coming from, a comparison of Mauna Loa CO2 to South Pole CO2 and the graph expands at the end to include ice core measurements back to the 19th Century.
This can be inferred from ice core measurements, which show a near constant atmospheric concentration of CO2 over the last several thousand years prior to the Industrial Era.
Ice core measurements of the isotopic composition of nitrate: new results and interpretation.
Ice core measurements of beryllium indicate a less variable TSI while modelling from solar magnetic flux show a greater decrease in TSI during the Maunder Minimum.
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