A study discovered that suggestions to decrease the global warming effects by reproducing volcanic eruptions can have a shattering impact on global areas prone to either prolonged drought or tumultuous storms. However, geoengineering has been proposed as a likely way to cope with climate variation. Geoengineering is the deliberate handling of the climate to balance the influence of global warming by introducing aerosols into the atmosphere artificially.
However, a new study led by the climate professionals from the University of Exeter in the United Kingdom proposes that directing geoengineering in any hemisphere can have a rigorously damaging effect on the other. They recommend that though aerosols injections in the northern hemisphere would decrease tropical cyclone activity—accountable for such latest occurrences including Hurricane Katrina—it might simultaneously result to augmented probability for drought in Sahel.
The research team has asked the policymakers across the world to sternly control any large-scale autonomous geoengineering programs in the future to avoid tempting natural catastrophes in different regions of the world. Anthony Jones, Lead authors of the study, said, “Our findings substantiate that regional solar geoengineering is an extremely risky approach that can concurrently benefit one area to the damage of another.”
The research centers on the influence of solar geoengineering techniques that introduce aerosols into the air may have on the occurrence of tropical cyclones. The contentious method, called as stratospheric aerosol injection, is developed to efficiently cool the surface of the Earth by reverting some sunlight prior to it touches the surface. The suggestions imitate the aftereffects of volcanic outbreaks when aerosols are injected naturally into the air.
In the study, the research team utilized advanced models with a completely combined atmosphere-ocean model to explore the impact of hemispheric stratospheric aerosol injection on the cyclone occurrence of the North Atlantic tropic. They discovered aerosol injections in the northern hemisphere would drop the North Atlantic tropical cyclone occurrence, while injections delimited to the southern hemisphere might probably boost it.