Geoengineering Less Sunshine - An Approach To Global Warming
Cutting carbon dioxide emissions is not easy; it requires a buy-in from developing nations who have coal and want a better life also, or a greater implementation of natural gas. One alternative idea is to transport materials into the stratosphere to reduce the amount of sunlight hitting Earth and therefore reduce the effects of global climate change.A new paper says that the basic technology currently exists and could be assembled and implemented in a number of different forms for less than $5 billion a year - a tiny fraction of the amount that cutting emissions costs. Put into context, the cost of reducing carbon dioxide emissions is currently estimated to be between 0.2 and 2.5 per cent of GDP in the year 2030, which is equivalent to $200 billion to $2 trillion. read more