home *** CD-ROM | disk | FTP | other *** search
/ CD School House 9 / CD School House 9.0 - Wayzata Technology (1994).iso / mac / MAC / School House / Misc. / Save the Planet 1991 2.11 / card_196703_render.png < prev    next >
Portable Network Graphic  |  1991-05-30  |  3KB  |  512x342  |  4-bit (4 colors)
Labels: text | screenshot | diagram | line | font | plot | parallel | number
OCR: 5.0- Carbon, x109 metric tons/yr 2.5- 0.04 1890 1910 1930 1950 1970 1990 MAN'S PRODUCTION OF CARBON DIOXIDE Year 350- Atmospheric CO2 in ppm 340 330 320 310+ 1960 1970 1980 1990 MEASURED CARBON DIOXIDE LEVELS YEAR