
Conservation
In this episode we'll learn:
- What problems face the environment
- How we can help
- Major conservationalists
- Pollution in America
- Amazon: Case Study
Cattle Farming
Probably one of the worst causes of rainforest degredation is that
of cattle ranching/farming. The land is cleared so that grass can
be grown to sustain the cows. The problem is that the soil in the
rainforest is not very fertile. The nutrients are quickly stripped
from the land and the number of cattle that one plot of land can
sustain drops very quickly. Soon the land is not good for growing
anything, its abandonded, and it is nearly impossible for the rainforest
to regenerate. The result is a spread of pastures, further into
the rainforest zones.

As we visited Mexico, we were able to see this happening all around
us. The shot above was taken on the way to the los Tuxtlas biosphere
reserve. This zone of the reserve is set aside for sustainable uses
of the land. However, it's difficult to justify cattle as a sustainable
resource when it only takes a few years for the land to degrade.
Scattered all accross this zone we could see pastures with very
few cattle on them, a sign that the land has decreased its productivity.
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