As MSN reports, Greenpeace activists have climbed various monuments around London to protest air pollution. There are many things I agree with Greenpeace on, but I fundamentally disagree with many of their tactics. Tactics such as this protest are inherently violent. Granted, not in a physical way per se, but they use force to make their point, which undermines their claims of being peace activists. Use facts and persuasion to turn people to your cause (they do this as well) not force. Those who rely on force to make their point are thugs, nothing more.