At Harvard lab, scientists are working on replicating the stratosphere conditions as the part of the atmosphere that gives around 6 to 30 miles on the surface of the planet in test tubes. The main goal is to better understand what can happen if it is decided by humanity to embark the radical, debatable plan to cool the plan temporarily by spraying clouds of particles in the sky.
If it happens continuously, the process may include sending planes in the sky to discharge the particles of the compound such as sulfur dioxide that reflects the sunlight back in the space and can provisionally cool down the planet. It is not fix for the change in climate, and is the form of geoengineering that carries threats that may not be expectable. As the climate change develops, it is likely that the global community may decide on trying it.
Harvard’s Solar Geoengineering Research Program, managing director, Elizabeth Burns, said that “Our team here is doing the research because we believe there’s still a lot of uncertainties around solar geoengineering, and we think there’s a chance for potential benefits around the world”. Elizabeth Burns even claims “But we also think there’s the chance for very real risks.”
In the new study of Nature Climate Change, scientists from Harvard, MIT and Princeton are using the state of art, thorough computer model to look at what can occur if solar geoengineering was used to reduce the increase in global temperature to half. In the consequence, it was discovered that lessening warming will offset the growing intensity of hurricanes and will assist temperate rain and deprived of water for farming.
The world can observe the developments in climate change impacts by around less than 0.6%. In contradiction to the previous studies have discovered that this type of geoengineering can help some parts of the world whereas other large areas were damaged.
The idea of spraying chemicals in the sky to cool the Earth is not novel. It is the similar procedure that occurs naturally when volcanoes explode. In the year 1991, when Mount Pinatubo exploded and emitted the tons of sulfur dioxide in the atmosphere, on ventilating the planet for greater than the year. Currently, researchers have started studying what can happen if humans purposely do something comparable.
Burns comments that “Solar geoengineering cannot be a substitute for reducing emissions, because it does not address the root cause of climate change”. “So if we are to achieve a stable climate, we really do need to reduce emissions to zero, and then also eventually remove the carbon dioxide that’s in the atmosphere and store it underground or elsewhere. Those actions actually address the root cause. Solar geoengineering does not”.
Environmental sciences Professor at Princeton, Alan Robock said that “It would only potentially be used temporarily while we rapidly reduce our emissions to the atmosphere and figure out cheap ways to separate carbon dioxide out”. “So nobody talks about doing it instead of mitigation. It would be on top of our best efforts at mitigation”.