ENERGY FLOW IN AUSTRALIA: MATCHING NEEDS AND SUPPLIES*

Abstract: Energy flow and transformation, being a fundamental driving force behind organization, should be subject to long term government policy. A pre-requisite for formulating energy policy is detailed knowledge of the dynamics and thermodynamics of energy supply and utilization. The lack of coherent policy in the past has led to the development of a society which is physically, institutionally and psychologically locked into an unsustainable liquid fuel consumption pattern requiring not only high but also growing consumption. An expression of this situation is the widespread assumption that coal and nuclear energy are the only significant realistic longer term options for the future, even though these would involve unproven technology and considerable environmental and social risks. The other long term option—the diffuse energy option based on widely distributed, renewable energy sources such as wind and the sun—is generally regarded as unrealistic. This is a social judgement determined more by the inertia of existing institutions and perceptions of our needs than by technical reality. It is possible however, that the measures which might be taken to deal with the crisis of oil depletion in the next couple of decades may swing community structure and attitude and bureaucratic organization into a conservation-minded pattern in which the long term option based on low, stable consumption, diffuse energy sources and decentralized conversion systems seems as realistic to policy makers as the other extreme—the centralized, nuclear-electric, growth society. This flexibility could only emerge, however, if energy research expenditure is diversified very soon.     

Gasoline exposure in motor vehicle accident fatalities

Three cases are described in which deaths after motor vehicle accidents occurred as a result of positional asphyxia associated with exposure to gasoline. The deceased individuals were aged 16, 34, and 35 years, respectively (M:F = 1:2) and had all been in the back seat of motor vehicles involved in rollover accidents that had resulted in spilling of gasoline with contamination of the cabins. Major components of gasoline were detected in blood and tissues by headspace gas chromatography. Postmortem toxicologic investigations of such cases, which include analyses for volatile hydrocarbons, may therefore produce additional significant information.     

Infanticide: is its incidence among postneonatal infant deaths increasing?: an 18-year population-based analysis in California

The decline in the incidence of sudden infant death syndrome (SIDS) and recent recommendations regarding the differentiation of SIDS and child abuse has generated speculation that some cases of infanticide were misdiagnosed as SIDS. The aims of this study were to determine the change in incidences and proportions of postneonatal deaths from all causes, SIDS, and infanticide in California over an 18-year interval encompassing years before and after the Back to Sleep campaign. Selected postneonatal mortality data from 1981 through 1998 obtained from the California Department of Health Services were analyzed and graphically displayed. The total postneonatal mortality and incidence of SIDS deaths per 100,000 live births decreased 45% and 66%, respectively, during the study interval; the incidence of infanticide remained low. The ratio of infanticide to SIDS increased from 4.3 per 100 in 1981 to 10.2 per 100 in 1998. Infanticide deaths, as a percentage of the total number of postneonatal deaths, increased slightly from the first to the second half of the study interval but never rose above 3.2%. It is concluded that this increased percentage is due to a decrease in SIDS deaths and not to an actual increase in infanticide deaths.