The day when the Earth will turn into a hothouse may be knocking the door
You might be a little child when you first learnt what the greenhouse and its effect is. Environmentalists have been working really hard for years to raise awareness among people about the greenhouse effect, but still there are many people who do not take such scientific terms as seriously as they should be taking in their daily lives.
Humans are leaving no stones unturned in continuing to heat the Earth up. Scientists have been working for years to understand the complexity of the Earth’s climate. When a factor disturbs the climate of the Earth, multiple feedback loops are set so that the factor drops or rises to the set point(which is the desired value in a closed-loop feedback system, as in regulation of temperature or pressure). You might have heard of the fact that the coverage of the ice usually at the poles affects the amount of heat energy absorbed or released from the Earth. This is a way the Earth maintains its temperature. These feedback mechanisms are really complex and even scientists have not come up with much details and logics about this case.
Usually the feedbacks are smaller than the initial stimulus(which is something that incites to action or exertion or quickens action), but scientists are finding it very difficult to understand the variety of stimulus that can result in huge changes in the Earth’s climate, or specifically speaking the temperature. Permafrost, ocean floor hydration, the melting down of summer sea ice in the Arctic and Antarctica, melting down of ice sheets, and reduction in winter snow cover indicates the high-latitude threats.
Amazon rainforest to a savanna
“For some of the tipping elements, crossing the tipping point could trigger an abrupt, nonlinear response (e.g., conversion of large areas of the Amazon rainforest to a savanna or seasonally dry forest),” the paper notes. “While for others, crossing the tipping point would lead to a more gradual but self-perpetuating response (large-scale loss of permafrost).”
If we consider this definition then the danger is not seen in this century but most probably in the century. This can be said because of the speed of the human population polluting the Earth in many ways like, harmful emission of gasses, clearing of forests, fossil fuel combustion, coal mining, decomposition, biomass burning, production of fertilizers, use of propellants and much more that can be avoided.