Boston Globe: A joint research program at the Harvard University Arnold Arboretum has received a $631,000 grant from the National Science Foundation to study forest changes around the world, according to the arboretum. The Center for Tropical Forest Science, which has 40 locations in 21 countries, will use the grant over five years to fund various workshops in Asia and North and South America for early-career scientists and exchange students, said Dr. Stuart Davies, director of the center. The program’s…