Ice Cores Exposes Wavering In Earth’s Greenhouse Gases
posted in Global Warming |The recent research study of trace gases those got trapped in Antarctic ice cores presently provides a practical view of greenhouse gas concentrations as well as is further confirming the connection between the greenhouse gas levels and global warming. The study has been published in the journal Nature.
They also established the fact that there have been concentrations of methane and carbon dioxide during that entire period of time, there have never been concentrations of carbon dioxide and methane as towering as the current levels, said Edward Brook, an associate professor of geosciences at Oregon State University, and author of a Nature commentary on the new studies.
“The fundamental conclusion that today’s concentrations of these greenhouse gases have no past analogue in the ice-core record remains firm,” Brook said in the report. “The remarkably strong correlations of methane and carbon dioxide with temperature reconstructions also stand.”
The latest research on the ice coring in Antarctica has been conducted by the members of the European Project. It extends the data on the trace gases and went back another 150,000 years. It is basically beyond any kind of research studies that has been prior to this, Brook added. Finally, researchers would like to gain some data going back to minimum .5 million years.
The small bubbles of the prehistoric air that has been trapped in the polar ice cores are used to provide with the records of trace gases in the climate at distant points in the past. It actually occurred probably as the consequence of the cyclical changes in Earth’s orbit around the sun.