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With more of us using fireplaces and modern high-efficiency wood stoves, the ancient profession is getting a new lease on soot
Plant and the butterflies will come: This summer the Smithsonian's new garden welcomes its winged visitors
It's not an emergency yet, but we have tons of the stuff, some of it hot, some not so hot, and nobody can agree on where to bury it
They're out there in there boondocks, doing their best to record the pure sounds of nature while there are still some quiet places left
Our historic concern for conservation now leads us into many areas related to endangered species and biodiversity
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Arid lands mean life on the edge. Adaptations serve flowers well, but deserts are always mosaics of abundance and seeming sterility
In a universe filled with prebiotic compounds,it may be only a small step for some of them to hook up in ways that lead directly to life
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