greenhouse gas emitter / public infrastructure / greenhouse gas emissions / reuse systems / nonrenewable energy / energy source / unviable energy source / individual energy consumption / oceans/waterways management / industrial relations law / land tenure systems / renewable energy sources / coal-powered electricity generation / renewable energy technology / food shortages / energy saving / waste management / natural life-support systems / education systems / mining / energy efficiency / Food supplies / renewable energy / nuclear energy / low-carbon energy technologies / oil / sustainable public infrastructure / energy creation / community/industry networks / holistic land systems / technology transfer / economic and political systems / food / energy / energy development / /