Environmental Engineering Reference
In-Depth Information
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Fig. 2.2
Different origins and responses to environmental problems in developed and developing
countries. (Source: Guide for Global Environmental Research Committee, edited by keywords
related to the environment)
human activity
1
. The key six elements of energy, resources, chemicals, water, food,
and atmosphere are all under stress as a result of growth in population and human
activities. Driving all these is an apparently insatiable appetite of humankind in
both numbers (population growth) and consumption (energy and resources). I see
this 'human desire' as driving all these global trends. For example, the ecological
footprint says current human activities have already greatly exceeded the capacity
of our one Earth. In view of the state of the planet beyond the sustainability the
1
The next chapter (3) describes the consequences of continued growth and the limits to growth
from environmental pollution and consumption of resources modeled by Meadows (
1999
), Mead-
ows et al. (
2004
).
