Jerry Coyne Compares World Religions to Science

Link. I love the two world maps he used, one of world religions and the other of world-wide scientific conclusions. I've used the first map before but I really love the second one. I'm planning on tracking down the source for both of them. The first map comes from Warren Matthew's book, World Religions (Wadsworth Publishing), seen here in the first link. The second map I'm trying to locate with no success. Is there a generic copyright-free world map that someone could doctor up to look like this one for my book on the OTF?