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Written by AZoCleantech Jul 31, 2018
Researchers at the University of Bristol conducted an innovative study that warns of the inability to mitigate levels of anxiety. carbon dioxide (CO 2 ) Western Europe and New Zealand would return to the warm tropical climate of early Paleogene, there are 56 to 48 million # 39; years.
As observed following the ongoing heat wave, the effects of this extreme heat include forest fires and arid lands, as well as negative effects on infrastructure and health . very interested in the Early Paleogene period, since the levels of CO 2 (about 1000 ppmv) are similar to those predicted for the end of this century.
The study was directed by David Naafs of the University of Bristol School of Earth Sciences and published in the journal Nature Geoscience on July 30, 2018
We know that Early Paleogene was characterized by a greenhouse climate with high levels of carbon dioxide . 19659009] Most current estimates of temperatures from this period come from the ocean and not from the earth – what this study is trying to answer, it is the warmth it has received on earth during this period . David Naafs
Researchers provide estimates of soil temperature 50 million years ago using molecular fossils of microorganisms in ancient peat (1965-19006). – from 23 to 29 ° C – currently, this temperature is 10 to 15 ° C higher than the average temperatures existing in these regions.
These results indicate that temperatures similar to those of the heat wave prevailing in Western Europe and in other regions prove to be the new norm by the end of this century with high levels of CO 2 in the atmosphere.
Our work adds to the evidence of a very hot climate at the end of century potential levels of carbon dioxide .
Importantly, we are also studying how the Earth system responded to this heat. For example, this period and other warm periods were badociated with evidence of arid conditions and extreme precipitation
Professor Rich Pancost, co-author and director of the University of Bristol Cabot Institute [19659008Inthefuturetheresearchgroupwilldiverttheirattentiontolowlatitudegeographicalregionstofindouthowhotlandtemperatureswerethere
Dr. Naafs said: " Do the tropics, for example, become dead ecological zones? ° C were too high for most life forms to survive "
" Some climate models suggest this, but we currently lack critical data ."
" Our results allude to the possibility that the tropics, such as mid-latitudes, were warmer than present, but more work is needed to quantify the temperatures of these regions . "
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