<Li> Global warming related to the Greenhouse effect . Warming could involve flooding of the Asian deltas (see also eco refugees), multiplication of extreme weather phenomena and changes in the nature and quantity of the food resources (see Global warming and agriculture). See also international Kyoto Protocol . </Li> <Li> Ozone layer depletion . </Li> <Li> Deforestation and desertification, with disappearance of many species . </Li> <Li> Volcanic eruptions such as Mount St. Helens and the Tunguska and other impact events </Li>

Who wrote the book global problems and ecological crisis