By Msgr. Charles Pope - As I have written here before, Catholics should be aware that radical environmentalists, including climate change extremists, have “solutions” that no Catholic can countenance. Many of them are advocates of abortion, euthanasia, and forced sterilization. They support government involvement in the economy in ways that contravene the principle of subsidiarity, violate the natural rights of the human person, and disproportionately harm the poor and developing nations.