How much % is human activities responsible for Global Warming?
Currently about 93%. I’m not an expert but as an experiment I plotted the CO2 values for La Niña years from 1951 to 2001 against Annual Global Temperature Anomalies and got a correlation coefficient of 0.96 – this means that CO2 is strongly correlated with global average temperature. R squared was 0.93, meaning that 93% of the change in global average temperature can be attributed to changes in CO2 level. La Niña years from here: http://iri.columbia.edu/climate/ENSO/bac… Temperatures from here: http://www.ncdc.noaa.gov/oa/climate/rese… CO2 as measured at Mauna Loa, data here: ftp://ftp.cmdl.noaa.gov/ccg/co2/trends/c… Obviously you would want to compare years with similar conditions, as far as possible, hence the reas
