Climate change tipping point crossed at 400 ppm of CO2
May17

Climate change tipping point crossed at 400 ppm of CO2

I suppose we (or our children or grandchildren) will find out if climate change is a conspiracy theory or not now that we’ve crossed this tipping point at 400ppm of CO2 in the atmosphere. This milestone was being watched by scientists because it had never been crossed in human history. It was that high many million years ago, which some could say supports the argument that climate change is in fact just part of the cycles of...

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