983 resultados para RENEWABLE RESOURCES


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"ILENR/AE-86/03."

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Description based on: December 1987.

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"ELENR/RR-89/04."

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"ILENR/RR-90/04."

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Includes index.

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"ILENR/RR-89/09."

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Description based on: 1991.

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Provides information on current legislation, recycling activities, grants and upcoming programs pertaining to solid waste issues in Illinois.

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"May 1989."

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"ILENR/RR-89/10."

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"ILENR/RR-90/02"--Cover.

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Cover title.

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ECLAC advocates that the Caribbean’s high debt dilemma was not principally driven by policy missteps, or the international financial crisis. Rather, it finds its roots in external shocks, compounded by the inherent structural weaknesses and vulnerabilities confronting Caribbean SIDS and their limited capacity to respond. A major factor has been the underperformance of the export sector, partly due to a decline in competitiveness and a slowdown in economic activity especially among the tourism-dependent economies. Caribbean countries have also accumulated debt as a consequence of increased expenditures to address the impact of extreme events and climate change attendant difficulties. Most Caribbean countries are located in the hurricane belt and are also prone to earthquakes and other hazards. Indeed, a disaster resulting in damage and losses in excess of 5 per cent of GDP can be expected to hit any Caribbean country every few years. Moreover, over the period 2000-2014, it is estimated that the economic cost of natural disasters in Caribbean countries was in excess of US$30.7 billion. The English Speaking Caribbean countries are extremely vulnerable to natural disasters.

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Dwindling oil reserves and growing concerns over carbon dioxide emissions and associated climate change are driving the utilisation of renewable feedstocks as alternative, sustainable fuel sources. Catalysis has a rich history of facilitating energy efficient, selective molecular transformations, and contributes to 90% of current chemical manufacturing processes. In a post-petroleum era, catalysis will be pivotal in overcoming the scientific and engineering barriers to economically feasible bio-fuels. This perspective highlights some recent developments in heterogeneous catalysts for the synthesis of biodiesel from renewable resources, derived from plant and aquatic oil sources. Particular attention will be paid to the importance of catalyst pore architecture, surface polarity and acid and base properties, in meeting the challenge of transforming highly polar and viscous bio-based reactants. © 2012 The Royal Society of Chemistry.