| cheapbag214s |
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| Joined: 27 Jun 2013 |
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| of lasting another three decades. Still, University of North Dakota professor Xiaodong Zhang, who has studied the hydrology of the region extensively, explains without hesitation that the wet cycles and subsequent rise of Devils Lake are caused almost entirely by climate change,[link widoczny dla zalogowanych], both natural and anthropogenic. While he feels certain that human-induced change is a major factor, it's hard to say exactly what percentage it accounts for. Likewise, it's impossible to pinpoint when a human influence might have begun. Gregg Wiche, director of the USGS North Dakota Water Science Center, explains that because the current flooding falls within the range of what researchers know happened in the early 1800s, it's hard to say that this wet cycle is taking place for a different reason. "We just don't have the evidence that this is the result of [anthropogenic] climate change—that it wouldn't have happened otherwise," he said. "I can't say that there isn't some impact,[link widoczny dla zalogowanych], but I don't think it's the driving force |
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