Against the idealism of carrying capacity

A population model assumes that the use of resources is equal to all of the individuals. The think here is that we are talking about “individuals” not hard numbers. They have different needs and life conditions. That’s why we cannot take the entire population of the world as in uniform conditions in order to establish the carrying capacity (K)
The individual/population resource use is a dynamic principle. We also must we aware that resources vary with time and space. Some of this variations are given by:

• MEDCs and LEDCs
• Urban vs. rural
• Young communities vs. older communities

However we need to manage carrying capacity to our advantage.
It might be trough pollution control
POLLUTION MANAGEMET
Natural income –> Human activity –> wastes –>  pollution
Pollution:the addition of a substance of agent to the environment by human activity at a rate grater that that at which it can be rendered harmless by the environment.
Major sources of pollution

• Combustion
• Domestic waste
• Industrial waste
• Agricultural waste

Pollution by noise, by heat.
Sources:

• Point source
• Non-point source

Detection and monitoring

• Directly. measure with a particular variable to refer an specific pollution factor. (CO2 presence in the atmosphere)
• Indirectly. Impact. uses a variable that depends on a specific factor. (e.g. acid rain: a wide range of possibilities to measure the impact; salinity on the atmosphere)

Pollution indicators

• Biological Oxygen Demand (BOD): amount of dissolved oxygen required to break down the organic material in a water volume through anaerobic or aerobic activity
• Indicator species (biotic index 1-10) through invertebrates

Three-level model of pollution management.
replace, regulate and restore
Waste management

Countdown. Last three days of classes.

Just three days more, but still a lot of information to cover. Let’s ROLL