According to Wikipedia, the U.S. has 154 national forests and 20 national grasslands containing 193 million acres. That’s 8.5 percent of the total U.S. land mass. Add to that the 12 percent of U.S. land protected as national wildlife refuges for a total of 20.5 percent. This means we must protect another 9.5 percent in the next 6 years if we are to meet the current “30 percent of land by 2030” conservation goal. I’m for it! I’m deeply grateful for what we have. But the esteemed naturalist and scientist E. O. Wilson says we must protect half of earth…