Mauna Loa CO2 (updated daily)

This is the median weekly reading that was updated daily, but since Biden was elected it now seems to be updated weekly (if you think Biden has a climate change plan that doesn't involve martial law you're living in cloud cuckoo land).

New Zealand has a similar station at Baring Head on the south coast of the North Island. They have quite a good primer on CO2 here

#climatechange #maunaloa