I have a few responses to Will Rogers’ thoughtful critique of my report, “Military vs. Climate Security: Mapping the Shift from the Bush Years to the Obama Era.”

Rogers says that “the report could be read as inferring that the Department of Defense (DoD) has an unnecessarily oversized budget”: that’s true. I think a single country that spends 43 percent of the world’s total military budget—more than the next 14 countries put together—and whose spending has nearly doubled since FY 2000 to the highest level in real terms since World War II, could find some ways to provide for the common defense with less money.