| http://www.w3.org/ns/prov#value | - s in days before we had thermometers and weather reports in newspapers?This web page from the Environmental Protection Agency explains:Scientists have been able to piece together a picture of the Earth's climate dating back decades to millions of years ago by analyzing a number of surrogate, or proxy, measures of climate such as ice cores, boreholes, tree rings, glacier lengths, pollen remains,
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