Implicit in the global land grab is the potential for a major water grab. A study of sub-Saharan Africa raises concerns that large-scale commercial agriculture could cause unforeseen but disproportionate impacts on access to water by small-scale producers.
Is there such a thing as clean coal, gas and nuclear power? What is the actual meaning of clean energy as mentioned by Obama in his State of the Union speech? And will it have any effect on climate change?