that humans are causing the rise in atmospheric co2 is confirmed by multiple isotopic analyses.
that humans are causing the rise in atmospheric co2 is confirmed by multiple isotopic analyses.
global warming controversy:136
analysis of carbon isotopes in atmospheric co 2 shows that the recent observed co 2 increase cannot have come from the oceans, volcanoes, or the biosphere, and thus is not a response to rising temperatures as would be required if the same processes creating past lags were active now.