"The planet's biggest problems have to do with sustainability, environmental decline, global poverty, disease, conflict and so forth. Really, they're all interconnected - it's one big problem, which is that the way we're doing things can't go on."

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We're facing growing climate change, more floods, more droughts, more crisis on a planetary level, and the systems we put in place in the twentieth century are just not going to work. We've run out of stuff. Our big problems are going to be energy supplies and food supplies. This is not a right-left issue. It's a people issue, and it cuts across all our categories.

— Margaret Atwood