ocr: AN Int has the shrunk tropical-Torest past from decade, area TIME 6/1/92 ENVIRONMENTAL 4.7 to: 4.2 billion acres (1.91 to 1.7 emissions Increasing have yearly raised CRISIS... billion hectares). the atmospheric concentration of CO2 from 327 to 354 parts Int the past 20 years, per million. as many, as 1 million h 2 species have vanished from the world's & tropical forests. - - : k 8 n MTS - = 2 o E 8 a N - o . T 1970s 1980s 1970s 1980s 1972 1989 Yearly Extinction Rates Yearly Tropical CO2 Emissions Detorestation Growing population in coastal areas leads to more marine Urban 1980 617 mil. pollut ...
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