Note: This is the 1997 edition of UNEP's Global Environment Outlook. If you are interested in more recent information, please see the 2000 and 2002 editions.
Figure 4.6. Index of global emissions
of sulphur dioxide, nitrogen oxide, and carbon dioxide.
Source:
Alcamo and Kreileman
(1996); Gschwandtner et al. (1985); Hameed and Dignon (1988);
Keeling (1973, 1994); Klein Goldewijk and Battjes (1995); Marland
and Rotty (1984); Marland et al. (1994); Mylona (1993); Overrein
et al. (1981); Placet and Streets (1987); WRI/UNEP/UNDP (1994).
Note:
Data for carbon dioxide
emissions before 1990 are derived from Keeling (1994); data after
1990 are assumed and are from Posch et al. (1996). No reliable
historical data are available for nitrogen oxide emissions.
