*biology pls * the carbon dioxide data (red curve), measured as the mole fraction in dry air, on mauna loa constitute the longest record of direct measurements of co2 in the atmosphere. they were started by c. david keeling of the scripps institution of oceanography in march of 1958 at a facility of the national oceanic and atmospheric administration. noaa started its own co2 measurements in may of 1974, and they have run in parallel with those made by scripps since then. the black curve represents the seasonally corrected data. the last four complete years of the mauna loa co2 record plus the current year are shown. the dashed red line with diamond symbols represents the monthly mean values, centered on the middle of each month. the black line with the square symbols represents the same, after correction for the average seasonal cycle. considering the trends world-wide in green energy resource development and usage, what impact has this field had on the overall carbon dioxide emissions? a) little, if any impact b) slow decline in emissions c) none; emissions increasing d) dramatic impact; emissions on the decline