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 3 of 6 · from the scan, no model involved

terns. Climate changes can disrupt an ecosystem’s delicate balance of species, increasing extinctions. Warming Could precipitate a northward spread of malaria.
It takes decades for oceans to warm to a new equilibrium; scientists estimate that today’s GHG concentrations have 2 more degrees of warming in the pipeline. Given the global economy’s momentum, years are needed to rein in GHG emissions, and longer to reduce them by the 60 percent needed to stabilize C02 concentrations at 550 ppm, the level scientists conjecture is the limit before irreversible damage occurs.
94.8%