There are abundant examples in every category of modern life, but observe just one (itself, perhaps, the least obvious) - transportation.
We consider both human communities, which include the cultural and social elements in addition to the obvious food, transportation, medical systems, and so forth, and ecologic communities, which include the plants, animals, and microbes in a habitat or habitats.
An obvious one is transportation costs.
The president's 2009 budget maintains funding for new transit projects at just over $1.5bn - a fraction of the money accorded to highways - despite the obvious shift in consumer transportation preferences.
The question for Transit — from both investors and from a logical standpoint — is how big it gets outside of urban areas where the need for public transportation is obvious.
Locally, in Ilulissat, the most obvious impact has been on transportation.
London's bold new scheme to control traffic by charging motorists to drive into the center of town started off smoothly this morning with no major public transportation breakdowns, no obvious technological glitches and no major outbreak of civil disobedience.
The size effect on oil transportation is more obvious in nanochannel than in microchannel (Additional file 1: Figure S2).
Their streets and subway cars are aging, and the obvious source of funding for transportation repairs, the gas tax, is drying up as drivers switch to hybrids and high-mileage cars.
In addition to the obvious ones, these include the banking, insurance, transportation, health care, and transportation sectors.
