The UN Special Rapporteur on the Right to Food argues that hunger is a political question, not just a technical problem to be solved with short-term fixes.
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Cities can be resource-sucking, pollutant-spewing monsters, but the picture could well be green if modelled after Vitoria-Gasteiz, 2012 European Green Capital.
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Photographer Peter Bregg travelled through Kenya, Uganda and Ethiopia documenting projects that aim to ease the struggle so many face in accessing clean water.
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Japan's self-sufficiency in primary energy is a mere 18%, but the country's government is looking to boost that with nuclear rather than green sources.
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