منابع مشابه
Economic Trends and Policies
Once again it is a pleasure to have this opportunity to speak to members of the ABE. I believe – I hope correctly – that business economists share our interest in seeking out practical policy responses to our problems. Today, I would like to offer some comments on current economic trends and their implications for policy. They will have a familiar ring to many of you. Looking back for a moment,...
متن کاملTrends in auto emissions and gasoline composition.
The invention of the spark-ignited internal combustion engine provided a market for a petroleum middle distillate, gasoline, about 100 years ago. The internal combustion engine and gasoline have co-evolved until motor vehicles now annually consume about 110 billion gallons of gasoline in the United States. Continuing air pollution problems and resulting regulatory pressures are driving the need...
متن کاملGlobal demographic trends and future carbon emissions.
Substantial changes in population size, age structure, and urbanization are expected in many parts of the world this century. Although such changes can affect energy use and greenhouse gas emissions, emissions scenario analyses have either left them out or treated them in a fragmentary or overly simplified manner. We carry out a comprehensive assessment of the implications of demographic change...
متن کاملInvestigating Economic Trends and Cycles
Methods are described for extracting the trend from an economic data sequence and for isolating the cycles that surround it. The latter often consist of a business cycle of variable duration and a perennial seasonal cycle. There is no evident point in the frequency spectrum where the trend ends and the business cycle begins. Therefore, unless it can be represented by a simple analytic function,...
متن کاملReview of Vehicular Emissions Trends Timothy
This review paper summarizes major developments in vehicular emissions regulations and technologies from 2014. The paper starts with the key regulatory advancements in the field, including newly proposed Non-Road Mobile Machinery regulations for 2019-20 in Europe, and the continuing developments towards real driving emissions (RDE) standards. An expert panel in India proposed a roadmap through ...
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ژورنال
عنوان ژورنال: Nature Climate Change
سال: 2012
ISSN: 1758-678X,1758-6798
DOI: 10.1038/nclimate1709