Gráfico original de Limits of
growth.
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Limites
do crescimento
Capacidade
de suporte da Terra
Donnella Meadows, Dennis Meadows,
Jørgen Randers
Limits
to Growth, 1972
Limits to Growth, 1992
Limits to Growth: The 30-Year Update 2004
Rio 92-2002
Pop 5,5
7 +27%
Materials
-23% greener economy (Abromovay)
CO2
-21%
WWF 2012: Current world cons= 1,5 times Ea's
capacity
Br 2,93
hectares por pessoa, contra 2,70 Wd
Society
has gone into overshoot, … a state of being beyond
limits without knowing it. These limits are more
like speed limits than barriers at the end of the
road: the rate at which renewable resources can
renew themselves, the rate at which we can change
from nonrenewable resources to renewable ones, and
the rate at which nature can recycle our
pollution. … [W]e are overshooting such crucial
resources as food and water while overwhelming
nature with pollutants like those causing global
warming."[1]
- "Beyond the Limits recognizes
that the future doesn't lie in tinkering with
resource use or simply squelching population
growth in developing countries. A sustainable
future will require profound social and
psychological readjustments in the developed
and developing world."[2]
- "Current crop yields can only sustain
the world's population at subsistence levels,
… while nonrenewable energy resources and
fresh water supplies are dwindling, and
greenhouse gases and other pollutants
increase. But while the prognosis is disaster
within decades if nothing is done, there are
encouraging signs. Technology offers greater
efficiency in energy consumption and pollution
control, international response to the ozone
crisis has been relatively swift, and
recycling efforts are gaining headway.
[However] … the conditions underlying limit overshoots--population
growth and resource depletion in a finite
world, for example--remain unaddressed in the
corridors of power."[3]
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