(Click Image To Enlarge)We have already overstepped three of nine planetary boundaries and are at grave risk of transgressing several others.
From New Scientist:
UP TO now, the Earth has been very kind to us. Most of our achievements in the past 10,000 years - farming, culture, cities, industrialisation and the raising of our numbers from a million or so to almost 7 billion - happened during an unusually benign period when Earth's natural regulatory systems kept everything from the climate to the supply of fresh water inside narrow, comfortable boundaries.
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