There is a controversial method of cutting greenhouse gas emissions called climate engineering. Climate engineering would lower climate temperatures by reflecting the run's radiation back into space, which will possibly be made done through changing cloud forms, or repecating particles that cover the atmosphere casued by volcanic eruptions.It is hoping to limit global warming to under two degrees and is said to be rapid and cost effective, though uncertainties are still present. It is possible that there may be side- effects and if they are to arrise, the method would have to be stopped suddenly, assuming it is possible to do so. Side effects may include the weakening of monsoon rains and food production in Asia and Africa. If it were a necessity to end the climate engineering, this too would lead to significant climate change and many ecosystems would struggle to adapt.
Though climate engineering has the potential to halt global warming, the side effects are too unknown at this point to risk the use of such a method. https://www.sciencedaily.com/releases/2016/12/161208085848.htm
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