Not sure why you're being down-voted -- feedback is an incredibly important process that surprisingly few software engineers seem to be exposed to. In particul

Not sure why you're being down-voted -- feedback is an incredibly important process that surprisingly few software engineers seem to be exposed to. In particular, there are multiple attractor states where the planet's temperature can maintain an approximate equilibrium for long periods of time -- one of these is just below our current mean temperature, and the next one up is thought to be about 10 degrees Celsius warmer, closer to the temperature experienced during the Paleocene-Eocene thermal maximum. Then of course there are ice ages, which, if aided by low CO2 levels, can result in the extreme low temperature of a "Snowball Earth." We are likely out of the equilibrium of our interglacial and in the beginning stages of a positive feedback loop that will continue increasing the planet's temperature until most of Earth's ice is melted and deserts expand in the low-mid latitudes, at which point blackbody radiation will offset the decreased albedo from lower ice levels. There are more complex, unpredictable dynamics at play as well that may serve as negative feedback. For example, less Arctic sea ice is predicted to result in more snow in the far north due to increased evaporation, which may serve to build up glaciers on land.