USA Today: Human-caused climate change threatens to flood Jamestown, the first permanent European settlement in what became the American colonies and the United States, says a report Wednesday by environmental groups. Jamestown Island, the site of the original 1607 settlement, is low enough to be inundated by rising seas and tidal waters — even if the waters do not rise as much by 2100 as scientists predict, according to the report by Natural Resources Defense Council (NRDC) and the …