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Articles from EarthTalk: Questions & Answers About Our Environment. A Weekly Column (August 10, 2008)

1-2 out of 2 article(s)
Title Author Type Words
Dear EarthTalk: how often do I really need to change my car's oil? Conventional wisdom has always put it at every 3,000 miles to prevent engine wear, but isn't changing oil that frequently wasteful and unnecessary? Also, what is the "greenest" and longest-lasting oil I should use? Roberts, Vic 523
Dear EarthTalk: what is "community based tourism" and how does it purport to safeguard pristine places? O'Neill, Erin 486

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