4. 1. Population Explosion The biggest environmental problem there is, and it’s getting bigger by the minute.
5. 2. CO 2 level in the atmosphere The main force behind global warming.
6. 3. Polar sea ice loss Startling visual evidence of global warming
7. Environmental issues in Sri Lanka. The Sri Lanka National Report to the WSSD (2002) identified a number of critical environmental problems and issues.
8. Scientific Grounding The level of understanding of Earth has increased markedly in recent times through science.