| http://www.w3.org/ns/prov#value | - We know it because a vast number of mutually consistent lines of evidence demonstrate that the northward progress of the African plate crumpled Europe in just that way and because we can see those rocks and strata.The case for anthropogenic global warming (AGW) is not yet that strong, but it is very strong, and the kinds of arguments that AGW deniers bring forward usually resemble those my enginee
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