Through developing a statistical model of Arctic temperature and how it relates to instrumental and proxy records derived from trees, ice cores, and lake sediments, Martin Tingley, a research associate in Harvard's Department of Earth and Planetary Sciences and Peter Huybers, Professor of Earth and Planetary Sciences, have shown that the warmest summers in the last two decades are unprecedented in the previous six centuries.
Fuente : http://www.eurekalert.org/pub_releases/2013-04/hu-...
Fuente : http://www.eurekalert.org/pub_releases/2013-04/hu-...