Dietary changes since the early 1960s have fueled a sharp increase in the amount of mined phosphorus used to produce the food consumed by the average person over the course of a year, according to a new study led by researchers at McGill University. Between 1961 and 2007, rising meat consumption...
Although restrictions on federal funding for human embryonic stem cell research have been lifted under the Obama administration, some researchers are finding the new ethical requirements burdensome, the Washington Post reports. Under the George W. Bush administration, only 21 stem-cell "lines"...