3 ms·1888 is very much not 'pre-industrial revolution', which had started over 100 years prior.by s3krit 1y ago1888 is very much not 'pre-industrial revolution', which had started over 100 years prior.bluGill 1y agoTrue, but 1888 had much less CO2 in the air. Or so we assume, we didn't measure it.Sayrus 1y agoActually we do have measures of it based on ice cores. We went from ~280ppm at the time to over 400ppm today.bluGill 1y agoI forgot about that we have that data. Thanks for the correction.