SCI1300 Study Guide - Final Guide: Solar Radiation Management, Biochar, Cloud Seeding
17 Oct 2018
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Document Summary
The deliberate large-scale manipulation of the planetary environment to counteract anthropogenic climate change. The environmental change must be the primary goal rather than a side-effect. Must be large in scale e. g. continental to global. E. g: cloud seeding, aerosol injection into stratosphere, giant reflectors in orbit. Iron fertilisation of ocean: pump liquid co2 into deep sea or into rocks, large-scale tree growth (cid:858)gree(cid:374)i(cid:374)g(cid:859) deserts, genetic engineering of crops. Trying to reduce co2 concentration in atmosphere. Land use management to enhance land carbon sinks. Enhancement of natural weathering processes to remove co2 from atmosphere. Trying to reduce solar radiation received by deflecting it or increasing albedo of the. Co2 removal is preferable to solar radiation management as is returns the climate system closer to its natural state. However, solar radiation methods are cheaper and work faster- however ocean acidification would still be a problem.
