Global stratospheric aerosol geo-engineering programs

If this approach were used, it would be important to develop and implement measures to protect people and save lives and livelihoods. Despite the potential problems with this method, the benefits could exponentially outweigh its downsides. Effiong, U. Assessing the direct occupational and public health impacts of solar radiation management with stratospheric aerosols.

Environmental Health , 15 1 , p. Keith, D. Geoengineering the climate: History and prospect. Annual review of energy and the environment , 25 1 , pp. Kravitz, B. Journal of Geophysical Research Atmospheres , D11 , p. Journal of Geophysical Research: Atmospheres , 2 , pp. What is Stratospheric Aerosol Injection? Stratosphere definition?

Who first proposed Stratospheric Aerosol Injection? What are the Dangers Associated with it? Rasch, P. Tilmes, S. Previous research suggested that cooling temperatures brought on by stratospheric aerosol injection may also lead to less rainfall, which could result in yield loss for rainfed crops.

Our model shows that the change in precipitation resulting from all three solar geoengineering methods would, in fact, have very little effect on crops. The researchers compared how agricultural productivity is affected by solar geoengineering and emissions reductions. The researchers found that while emissions reductions have strong cooling and humidity benefits, they may have a smaller benefit for crop yields than solar geoengineering because the reduction of CO2 fertilization reduces the productivity of most crops compared with solar geoengineering that achieves the same temperature reduction.

The finding highlights the need to combine emissions reductions with other tools, including increasing the use of nitrogen fertilization and changes to land use.

Topics: Climate , Geoengineering. Leah Burrows lburrows seas. Climate , Environment. First study to quantify the degree to which increases in PM2.

By Leah Burrows Press contact. May 20, Facebook Twitter Email LinkedIn. David Keith. Professor of Applied Physics. Cutting-edge science delivered direct to your inbox. Scientist Profiles.