Here the scary chart in question: https://scripps.ucsd.edu/programs/keelingcurve/wp-content/plugins/sio-bluemoon/graphs/mlo_full_record.png https://scripps.ucsd

Here the scary chart in question: https://scripps.ucsd.edu/programs/keelingcurve/wp-content/plugins/sio-bluemoon/graphs/mlo_full_record.png https://scripps.ucsd.edu/programs/keelingcurve/wp-content/pl... The last 2 years where it can be seen the level never returned under 400 ppm: https://scripps.ucsd.edu/programs/keelingcurve/wp-content/plugins/sio-bluemoon/graphs/mlo_two_years.png https://scripps.ucsd.edu/programs/keelingcurve/wp-content/pl...