
According to the 1870 federal census, one percent of the people owned 72 percent of all the wealth in the great industrial city of Pittsburgh. What’s more, just half of these wealthiest one percent (0.5% of the population) owned 59 percent, well more than half of all the wealth in historic Pittsburgh. In fact, all
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An amazingly interesting and insightful graph from EPCOR, Edmonton’s water utility for 300,000 residents, was recently published showing water consumption in Edmonton during the Olympic gold medal hockey game between Canada and the United States. Roughly two-thirds of Canadians watched the game.
Edmonton Water Consumption During Olympic Gold Medal Hockey Game
The quantities listed in
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Photo by J.S. Peterson, USDA NRCS NPDC.
The blue spruce aka Colorado blue spruce (Picea pungens Engelm) is an evergreen tree that can reach well over a hundred feet tall. It’s native to the Rocky Mountains in the western United States (1). Unlike a lot of other spruce conifers, its branches tend to be horizontal
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Eastern Subterranean Termites Winged Reproductives. Photo by Gary Alpert,Harvard University, bugwood.org.
The eastern subterranean termite is the most common termite found in the eastern United States and the most destructive pest to its buildings. If you have termites in the eastern US, it’s very likely that you’ve got these guys in your
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Professor Alfred Crosby’s 1986 book Ecological Imperialism: The Biological Expansion of Europe, 900-1900 is an earlier example of environmental history. Crosby asserts that Europeans, with their command and control of ocean navigation brought swifter regime change to the ecosystems of their colonial worlds. From smallpox to rats to oranges, Europeans picked up indigenous flora and
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