The introduction to the New York Times' Opinion series on the Amazon is damning: "We've been talking about 'saving the rainforest' for decades, but trees are still burning, oil is still spilling, and dams are still being built. Today the people of the Amazon are living through the most extreme versions of our planets most urgent problems." The series features opinion pieces by a dozen experts on what is going on in the rainforest and what to do. Here are a few: