Does'nt the earth has builtin meganisms to curb global warming?

Answer 1

yes, there are built-in mechanisms (also known as negative feedback loops) to curb global warming.

one mechanism is the carbon-silicate cycle. as silicate compounds (which are found in rocks) get eroded, they use up carbon dioxide from the atmosphere. an example of such a reaction is the erosion of calcium silicate:
CaSiO3+2H2CO3-->Ca(HCO3)2+SiO2+H20
where H2CO3 is carbonic acid, which is made from atmospheric CO2.

another mechanism is the terrestrial-biomass feedback: as the amount of CO2 in the atmosphere increases, more plants grow, which take away some CO2.

the existence of these "built-in mechanisms" are part of the Gaea Hypothesis, which states that the earth is a self-sustaining system and that living things will change their environment so that it doesn't become unlivable.

however, this doesn't mean we can do whatever we want to the planet and hope that it'll fix itself. the main region where silicate weathering takes place nowadays is the Himalayas, where rocks are constantly being exposed by mountain-building activities. since this is a very slow process, it probably won't be able to soak up all the carbon dioxide we produce. also, the earth is being deforested, so we're getting rid of the way to get rid of the CO2.

Answer 2

It only has enough mechanisms to curb naturally occurring global warming. We are adding too much. That's why we're seeing all the problems as shown in "An Inconvenient Truth."

Answer 3

Yeah, one of them is Megan's Law.