Environmental Information in the Isotopic Record in Trees

Details Environmental Information in the Isotopic Record in Trees Environmental Information in the Isotopic Record in Trees

Apr 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990rspta.330..427e&link_type=abstract

Philosophical Transactions of the Royal Society of London. Series A, Mathematical and Physical Sciences, Volume 330, Issue 1615,

Physics

18

Scientific paper

Twenty-three trees from widely different geographic locations and different environments were analysed for the δ D and δ 13C records. The δ D values suggested that the temperature of the Earth's surface rose over the past 100 years and probably for the past 1000 years. The rate of warming appears to be latitude dependent, greatest in the cooler areas. The δ 13C record, obtained for seven of the 23 trees, contain the δ 13C decrease due to the anthropogenic effect, the addition of CO2 from coal and petroleum burning. This effect appears to be twice as high in the Northern Hemisphere as in the Southern Hemisphere.

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