4 ms·

How long until the negative feedback kicks in?

• DennisP 4y ago
  Based on the geological record, negative feedbacks are extremely long-term. What we see several times is a small initial temperature boost caused by orbital variations, followed by massive carbon release, then eventual drawdown after millions of years due to things like rock erosion. Some people have tried to make a big deal out of higher CO2 making plants grow faster, but plant growth is limited by lots of other things like nutrient availability, disease, and drought. A lot of forests are not doing well these days.
  • bismuthcrystal 4y ago
    Interesting. Thanks. Another question. Seawater heating up and releasing CO2 is positive feedback. Is it some kind of doomsday feedback loop?
    • DennisP 4y ago
      I haven't seen it described in such severe terms but yeah that's another issue. I'm not sure how much it's from actually releasing CO2, or just not absorbing as much of our emissions as it used to.
• SAShithole 4y ago
  2 more weeks