the once in a 100 million year experiment
As we consume fossil fuels, we humans are carrying out a once in a 100 million year experiment. The coal, oil and gas we have burned so profligately in the past 200 years or so are a legacy of ancient sun energy laid down in the Earth’s crust by organisms at least 100 million years ago (300 million in the case of coal). We began exploiting these reserves where they were easy to reach; at …