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Abstract:The purpose of this paper is to calculate the energy return on financial investment (EROFI) of oil and gas production in the ultra-deepwater Gulf of Mexico (GoM) in 2009 and for the estimated oil reserves of the Macondo Prospect (Mississippi Canyon Block 252). We also calculated a preliminary Energy Return on Investment (EROI) based on published energy intensity ratios including a sensitivity analysis using a range of energy intensity ratios (7 MJ/$, 12 MJ/$, and 18 MJ/$). The EROFI for ultra-deepwater oil and gas at the well-head, ranged from 0.019 to 0.022 barrels (BOE), or roughly 0.85 gallons, per dollar. Our estimates of EROI for 2009 ultra-deepwater oil and natural gas at the well-head ranged from 7-22:1. The independently-derived EROFI of the Macondo Prospect oil reserves ranged from 0.012 to 0.0071 barrels per dollar (i.e., $84 to $140 to produce a barrel) and EROI ranged from 4-16:1, related to the energy intensity ratio used to quantify costs. We believe that the lower end of these EROI ranges (i.e., 4 to 7:1) is more accurate since these values were derived using energy intensities averaged across the entire domestic oil and gas industry. Time series of the financial and preliminary EROI estimates found in this study suggest that the extraction costs of ultra-deepwater energy reserves in the GoM come at increasing energetic and economic cost to society.

Higher education institutions play a leading role in sustainability efforts nationwide. Not only do these institutions require large quantities of energy to function but also their research role often lays the groundwork for social transformation. The purpose of this study was to estimate the annual greenhouse gas emissions primarily from energy usage at Louisiana State University. Total energy use is 2.43 million MMBtu resulting in per capita GHG emissions of 6.1 Metric Tons CO2e, which is low compared to many other universities because of lower utility costs. This calculation does not account for total indirect energy use by the university community. Several alternatives for reducing energy use and emissions are considered

The integration of feedbacks between Holocene planetary history and human development benefits from a change in perspective that focusses on socio-historical periods of stability separated by global-scale events, which we call foundational transitions or bottlenecks. Transitions are caused by social and/or astronomical and biogeophysical events such as volcanoes, changes in solar emissions, climate change such as sea-level/ice volume conditions, biogeochemical and ecological changes, and major social and technical innovations. We present a global-scale cultural chronology that accounts for major changes generated by such events in the late Pleistocene and Holocene. These changes are governed by transitions that make energy more or less available to human groups. The chronology is followed by methodologies to incorporate the innate, Malthusian-Darwinian human tendency to grow systems over time into a helical-feedback equation that provides for testing the hypothesis. A proof of concept test of these ideas using information system-based data from the Maya lowlands in conjunction with other civilizations suggests a troubled transition for the current worldwide economic system because of potentially catastrophic climate impacts and resource constraints on biogeophysicalsocial resilience in the face of obvious needs of the system to change to a more sustainable mode of acquiring energy. The Maya case implies that change is more likely to transpire because of planetary-scale disturbances/constraints in the Earth (human and planetary) system and will likely lead to strong social disruptions. There may be as many as 200 such case studies to test this idea worldwide. Our analysis suggests that a transition toward sustainability for the current energy dense globalized industrial society will be very difficult.