Sentences with phrase «hydrogeologists estimate»
Hydrogeologists estimate that the part of the Earth that holds water stretches almost as deep beneath our feet.
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Of the 15 hydrogeologists in the Denver office where Zeiler works, only three have Ph.D. s. That's typical of the field as a whole: AGI estimates that university programs graduate five times as many M.S. students as Ph.D. s. Its figures show that about 18,000 hydrologists and hydrogeologists now work in the environmental industry, a few thousand in the mining and petroleum industries, and about 850 in academia, the only sector for which a doctorate is required.