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...cities such as Los Angeles and Pittsburgh and Detroit often reach these levels. (The Environmental Protection Agency deems anything between 151 and 200 micrograms per cubic meter to be unhealthy.) But it's hard for the average city denizen to know when particulate levels reach that unhealthy zone. In fact, the 80 volunteers in the study, who breathed ambient city air or filtered air in chambers, couldn't tell which air was which; particulate-loaded air is still 10 to 100 times less dense than cigarette smoke...
While the sheer number and size of the found animals were extraordinary - and made possible because the volcanic crater's ecology had been virtually undisturbed by humans - the scientific discovery of new species is actually quite routine. In fact, biologists are identifying new species at a torrid rate, about 50 a day; nearly 17,000 new plants and animals were described in 2006 alone, or some 1% of the 1.8 million species that have been recognized so far. (See 10 species near extinction...
...Cynthia is playing really well,” Goodman-Bacon said. “She’s communicating very well, which is great for our defense.”It is the first time since 2005 that Harvard has opened the season with back-to-back wins, a fact that could be attributed to the team’s offseason training regimen.“A lot of us played together over the summer and worked out here, which was helpful in terms of being in a rhythm,” Keating said...
...stressed that The Crimson does not endorse views put forth in any advertisement, though the University daily is in fact responsible for all its published content...
...fact that [The Crimson] took responsibility for their actions is very impressive,” Gillette said in an interview later...