| http://www.w3.org/ns/prov#value | - There is furthermore need to address the various emerging issues such as urbanisation and sustainable cities, Climate change, food security and sustainable agriculture, energy and water security, waste management including electronic waste, and disaster management and preparedness. 1.0 From Rio 92 to Rio+20: Achievements and challenges 1.1 Botswana has made substantial strides in pursuing sustaina
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