We had a bleaching event in 2010 in the Caribbean that took off big patches of skin on boulder corals like these. 加勒比海在2010年也经历了白化事件，当时就像这样大片大片的珊瑚礁表面被剥离了。 This coral lost half of its skin. But if you
I'm not even telling you the story because I think we should be running more carefully controlled randomized trials in all aspects of public policy, 我跟你说这个故事也不是因为我认为，我们在公共政策的各个方面，做随机抽样试验时，应该更小心， altho
