SRM is a proposed form of geoengineering, aims to reduce the earth's absorbtion of solar energy to reduce the effects of globle warming.
SRM is cheap and fast, but imperfect. the problems that reasearchers have encountered studying SRM make it a more serious problem to put SRM in use.
firstly, besides the argrument about whether SRM could effectively improve the climate situation, the side effects SRM caused can be very serious and uncertain. the earth may have less precipation and less evaporation. moreover,other introduced environmental risks like ozone holes wil eventually pose riskes as arge as those from the uncontrolled emmission. dealing with such case, we must develop the capability to do SRM in a manner that completments such cuts, while managing the associated environmental and political risks.
secondly, the size and amount of ditribution of aerosols need further testing and may cost millions of dollars.
thirdly, the crucial points of the globle governance of SRM is establishing legitimate collective control over an activety that some might to seek to do unilaterally.a nation might grow frustrated at the pace of international coorpration and establishin a national programme of gradually expanding reserach and field tests. in additon, no existing treaty or institution is well suited to SRM governance. from the author's point of view, a better approach would be to build international cooperation and norms from the bottom up, as knowledge and experience develop.
Subscribe to:
Post Comments (Atom)
No comments:
Post a Comment