'I like to compare what's going on today to the asteroid that wiped out the dinosaurs - except that now we are the asteroid' - Anthony Barnosky
Geologists have suggested that humanity's impact upon the atmosphere is so profound, due to the burning of fossil fuels, that we're creating a new geological time period. They're calling it the Anthropocene.
Fossil fuel emissions, climate change, agriculture and chemical pollution may all be portrayed in various ways in sediments in the seas, lakes and rivers. Millions of years from now the layers of sediment will have compacted into rock which future geologists can analyse.
The BBC news website has a lot of information on this new era...
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