Population links Interactive Population Counter
Our pressure on the world depends on
Population size and Resource use,
often expressed in the equation
I = P x A x T
= Population (size)
× Affluence (welfare)
Note: Contrary to popular belief, Technology increases our impact!
cf. the T factor of I=PxAxT
Voir aussi IPAT stratégies
Also see our
Not to be confounded with the
so-called "ecological footprint"
Note: Technology may have a local beneficial effect on local pollution.
But, factually, Technology is included in the Affluence factor. Technology consists of tools, machinery, and manufacturing plant for agricultural and industrial production. The separate mentioning of a Technology factor is justified because Technology generally increases our labour "efficiency" or productivity, i.e. Technology increases the speed of our resource extraction and depletion.
The disadvantage of a separate Technology factor is that many people believe Technology to be positive and thus misinterprete this factor. This opinion is linked to the almost universal belief that the world can be saved by (future) Technology.
it should have been in the denominator of the equasion, like this:
Also compare Population Growth & I=PxAxT
Unlike Technology, a technique refers to a way in which a goal is achieved. A technique can have many forms, also without technology.
Many people claim that the world could nourish 12 billion people, if food were distributed equitably.
Whilst this is an argument in favour of more equity, it cannot be used to say that the earth could carry 12 billion people and that population growth would therefore not be a problem.
On the contrary
Despite talk of aid and development, the effects of population growth are borne locally, especially in the poor areas of the world. The baby born into the slums of the world's mega-cities lives it's life in those slums.
An additional person in a rich country increases the pressure locally and elsewhere, because of increased imports of resources.
Sustainability: The balances are maintained if resources are not consumed at a higher rates than needed for regeneration.
Sustainable Society: A society that balances the environment, other life forms, and human interactions over an indefinite time period.