A characteristic of the present global ecological situation is
increasing instability or-- put another way--a crisis in the
civilization system, the global scale of which is expressed through a
deterioration of human and animal habitats. The most sub- stantial
features of global ecodynamics of the late 20th and early 21st centuries
include the rapid increase in world population (mainly in developing
countries), increase in the size of the urban population (considerable
growth in the number of megalopolises), and increase in the scales of
such dangerous diseases as HIV/AIDS, hepatitis, tuberculosis, etc. With
growing population size the problems of providing people with food and
improving their living conditions in many regions will not only not be
resolved but will become even more urgent. Any possible benefit from
decrease in per capita consumption as a result of increased efficiency
of technologies will be outweighed by the impact of such a growth in
population size. Despite the predom- inant increase of population in
developing countries, their contribution to the impact on the
environment will not necessarily exceed that of developed countries. Key
to ensuring sustainable development of the nature/society system (NSS)
is the relation- ship between production and consumption, as mentioned
at the World Summit on Sustainable Development in Johannesburg (2002).
As civilization has developed, so the problem of predicting the scale of
expected climate change and associated change in human habitats has
become more urgent.