(Credit: Shutterstock/Getty/Salon) The abortion rate has fallen yet again, according to a new study published in the American Journal of Public Health, dropping by 25 percent from 2008 to 2014. Thanks, Obama! Or really, thanks to the widespread use of contraception, which researchers Rachel Jones and Jenna Jerman of the Guttmacher Institute argue is the largest single factor in the drop in the abortion rate.