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HOW TO SPEND $1M REDUCING CLIMATE CHANGENovember 9th, 2010[...] According to a recent paper by David Wheeler and Dan Hammer, climate change experts at the Center for Global Development, the answer is (drum roll): you would do much, much better to spend your money on a combination of family planning and girls’ education in developing countries.This table, based on data in their paper, shows how many tonnes of CO2 would be abated for your $1m:InterventionTonnes of CO2 savedFamily planning & girls’ education combined250,000Family planning alone222,222Girls education alone100,000Reduce slash and burn of forests 66,667Pasture management50,000Geothermal energy50,000Energy efficient buildings50,000Pastureland afforestation40,000Nuclear energy40,000Reforestation of degraded forests40,000Plug-in hybrid cars33,333Solar33,333Power plant biomass co-firing28,571Carbon Capture and Storage (new)28,571Carbon Capture and Storage (retrofit)26,316The logic, of course, is that if there are fewer people on the planet, then we will generate fewer greenhouse gas emissions. Population policies are important because there are many people in developing countries who want smaller families, but don’t have access to the family planning services they need to achieve this. Education is important because educated girls want (and are more able to insist on) smaller families. That’s why these interventions are important and cost effective, both individually and especially when done together.Win – winThis approach is particularly attractive because, in addition to helping to slow global warming, there are other, very significant benefits for the citizens of developing countries of access to family planning and to education for girls.The other day I reported here that if donors invested about $180 million a year to provide modern contraception to every Ethiopian woman who wants it, this could set off a virtuous circle of rising income per capita, lower desired family size, greater use of contraception, lower numbers of children, and so rising income per capita. My back of an envelope calculation found that a decade of access to modern family planning would have roughly the same effect on incomes in Ethiopia as the entire international aid programme in Ethiopia does today.As well as environmental and economic benefits, there are important social and health benefits for women and their families, which strengthen the case for these investments over and above the cost-effectiveness figures shown above.Making choicesOf course in an ideal world we would do all of these things. But although it is inconvenient to acknowledge it when you are busy trying to save the world, resources for averting climate change are limited. We should make informed choices to reduce carbon emissions in the most cost-effective and sustainable way we can with the resources available, to secure the biggest and broadest benefits. These figures from the Center for Global Development imply that investment in family planning and girls’ education would be a far better investment than the UN Reducing Emissions from Deforestation and Forest Degradation (REDD), which aims to spend $30 billion a year on incentives for developing countries to reduce deforestation and forest degradation.We would get three or four times as much bang for our buck – in terms of climate change benefits – from population policies and girls’ education as we would from even the most cost-effective investments in forestry (stopping slash-and-burn), and in addition we’d get the broader economic and social benefits for the people of developing countries. [...]http://www.owen.org/blog/4105