Science and Technology Daily, Beijing, June 19 (Reporter Liu Xia) Scientists from the University of Texas at Austin in the United States simulated how changes in the distribution of water around the earth affect the drift of the poles. The results show that the total amount of groundwater pumped by human beings from 1993 to 2010 was about 210 billion tons, and the change of groundwater distribution caused the earth's poles to drift by 80 cm...