3 ms·

I came to ask exactly this! Although, any clues for why the Hawaii measurements follow that pattern?

• trescenzi 3y ago
  It's due to vegetation growth during the summer in the northern hemisphere https://www.climate.gov/news-features/understanding-climate/climate-change-atmospheric-carbon-dioxide#:~:text=The%20seasonal%20cycle%20of%20highs,is%20driven%20by%20human%20activities https://www.climate.gov/news-features/understanding-climate/....
  • benrutter 3y ago
    Oh wow! So interesting to see such a concrete impact from vegetation!
• AnotherGoodName 3y ago
  Hawaii does month by month measurement and the seasons have vastly different CO2 levels due to plant activity. Going back further was just a rough yearly average. The zig zags are a reasonably smooth yearly wave if you zoom into them.
• deleted 3y ago
  [deleted]