It’s fossil fuels and farming. This was solved two years ago: https://climate.nasa.gov/news/2668/nasa-led-study-solves-a-methane-puzzle/ https://climate.nasa.g

It’s fossil fuels and farming. This was solved two years ago: https://climate.nasa.gov/news/2668/nasa-led-study-solves-a-methane-puzzle/ https://climate.nasa.gov/news/2668/nasa-led-study-solves-a-m... Actual study: https://www.nature.com/articles/s41467-017-02246-0 https://www.nature.com/articles/s41467-017-02246-0