2 ms·
Actually we do have measures of it based on ice cores. We went from ~280ppm at the time to over 400ppm today.
by Sayrus 1y ago
Actually 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.