Block · one region of the page, as the scanner read it. It may hold a whole story, part of one, several, or an advertisement; stitching blocks into articles is the next step. Text is supplied OCR.
Page 5 · column 2 of 6 · from the scan, no model involved
high. Average global temperature has risen about 1.6 degrees Fahrenheit since 1950. The six hottest years on record have occurred since 1998. Temperatures are rising more rapidly in cold regions, about 4 degrees warmer in the Arctic. Polar ice caps are shrinking, reinforcing warming by turning reflective ice into sunlight-absorbing sea water. Melting ice and thermal expansion raise sea levels, threatening coastal areas. Warmer tropical waters contribute to increased frequency of extreme hurricanes.
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