Human activities on earth have/are causing the earth and its climate to work more than its normal rate, to have a point of balancing in supporting life.
Despite the environmentally unfriendly activities of the most civilized creatures, the earth undergoes natural balancing/reinforcing processes through balancing and reinforcing feedback loops.
In a large-scale reinforcing feedback loop(ice-albedo feedback), warming causes sea ice to melt and decreases geographic extent. As sea ice is replaced with ocean water, the surface albedo, or reflectivity, declines. The darker ocean surface absorbs more sunlight which leads to additional warming and thus additional sea ice melt, closing the reinforcing feedback, and further amplifying warming in a vicious cycle
Large-scale balancing feedbacks ( CO2 fertilization feedback) results from the stimulatory effect increased atmospheric CO2 has on photosynthesis, which in turn sequesters atmospheric CO2
We have to help in the achievement of these natural processes by taking action at all levels. Get involved and make the world a better place.
(Hansen et al., 2011); (Pan et al., 2011)