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The recent conference continued that theme under the title “ Toward Sustainability . Working toward sustainability , scientists are reducing the environmental impacts of energy conversion and economic development from legacy waste cleanup to catalytic processes that convert biomass to energy and value-added chemicals . Following the ABA 's participation in the World Summit on Sustainable Development , the Committee is leading the Section-wide effort to raise awareness of sustainability concepts and to integrate sustainability thinking across all environmental practice areas . The relatively new dynamic computable general equilibrium model , DREAM , is used for long term projections and evaluation of sustainability of fiscal policy programs . The German system of communal self-government offers an ideal framework for sustainability policies .