http://blogs.ei.columbia.edu Tue, 21 May 2013 15:39:03 +0000 en-US hourly 1 http://wordpress.org/?v=3.5.1 http://blogs.ei.columbia.edu/2012/07/25/investigating-impacts-of-increased-fertilizer-use-in-africa/ http://blogs.ei.columbia.edu/2012/07/25/investigating-impacts-of-increased-fertilizer-use-in-africa/#comments Wed, 25 Jul 2012 21:29:58 +0000 Earth Institute http://blogs.ei.columbia.edu/?p=29005 The rains came late this year in Kenya. I was there for several months in the winter and spring to conduct research for a post-doctoral fellowship, examining the consequences of increases in fertilizer use on soil fertility, maize yields, nitrogen gas emissions and nitrogen leaching losses. ]]> http://blogs.ei.columbia.edu/2012/07/25/investigating-impacts-of-increased-fertilizer-use-in-africa/feed/ 1 http://blogs.ei.columbia.edu/2012/04/12/why-soil-matters/ http://blogs.ei.columbia.edu/2012/04/12/why-soil-matters/#comments Thu, 12 Apr 2012 19:48:59 +0000 Renee Cho http://blogs.ei.columbia.edu/?p=25102 Soil is the source of all life. Yet “we know more about soils of Mars than about soils of Africa,” says Pedro Sanchez, director of the Earth Institute’s Tropical Agriculture and the Rural Environment Program. To remedy this situation, the Earth Institute is taking part in an ambitious undertaking to map the world’s soils.]]> http://blogs.ei.columbia.edu/2012/04/12/why-soil-matters/feed/ 0 http://blogs.ei.columbia.edu/2011/08/18/getting-to-the-root-of-africa%e2%80%99s-soil-problems/ http://blogs.ei.columbia.edu/2011/08/18/getting-to-the-root-of-africa%e2%80%99s-soil-problems/#comments Thu, 18 Aug 2011 17:41:23 +0000 Rebecca Greenwald http://blogs.ei.columbia.edu/?p=16940 Agrium Incorporated and The Mosaic Company have partnered with the Earth Institute’s Tropical Agriculture and Rural Environment Program (TropAg) to improve soil measurement and fertility throughout Sub-Saharan Africa.  The program will link the Millennium Villages Project to the African Soil and Information Systems Project (AfSIS) with the aim of assessing nutrient depletion in soil and [...]]]> http://blogs.ei.columbia.edu/2011/08/18/getting-to-the-root-of-africa%e2%80%99s-soil-problems/feed/ 0 http://blogs.ei.columbia.edu/2011/08/18/is-biomass-really-renewable/ http://blogs.ei.columbia.edu/2011/08/18/is-biomass-really-renewable/#comments Thu, 18 Aug 2011 16:30:43 +0000 Renee Cho http://blogs.ei.columbia.edu/?p=16945 Ninety percent of all existing biomass power plants use wood residue and there are currently 115 power plants in development that will burn biomass to generate electricity. But just how renewable is biomass energy?]]> http://blogs.ei.columbia.edu/2011/08/18/is-biomass-really-renewable/feed/ 3