Ecological footprint of the United States
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This graph tracks the per-person Ecological Footprint and biocapacity in United States of America since 1961. Both are measured in global hectares. Biocapacity per person varies each year with ecosystem management, agricultural practices (such as fertilizer use and irrigation), ecosystem degradation, and weather, and population size. Footprint per person varies with consumption amounts and production efficiency. Where a dotted line is shown, interpolation estimates have been used in place of highly unlikely outliers in the results. While most input data for the Footprint accounts come from UN statistical sources, the quality of country results varies. The quality of the assessment is scored on a 1-6 scale, and is provided for United States of America in the upper-right corner of the graph.
The balance of trade (or net exports, sometimes symbolized as NX) is the difference between the monetary value of exports and imports of output in an economy over a certain period. It is the relationship between a nation's imports and exports. A positive balance is known as a trade surplus if it consists of exporting more than is imported; a...
@fusiliyyc I get that, but you can't write a piece that says there are no ecological limits and that the "footprint" concept is irrelevant.