Photo credit : NASA LBA-ECO Project. http://www.nasa.gov/centers/goddard/images/content/157716main_forest_burning_lg.jpg
6 trf problems
Conflicts in the TRF
Starter• Watch the video clip and try to come up with as many problems as you can see – Here – Here
Lesson Objectives• To know there are several conflicts in the tropical rainforest• To understand why these problems exist• To develop an opinion on each issue
Who uses the Amazon?Miners, wanting to extractminerals, such as bauxite.Loggers, who gain a highprice for timber likemahogany.Commercial farmers, wantingland to grow crops, like soya.Cattle ranchers, who needareas for their cattle tograze.
Mining for gold and bauxiteThe mining industry is veryimportant to the expansionof the Brazilian economy.But miners have causeddamage to the rainforest bycutting down large areas offorest and using chemicals toextract metals from theground.Mercury is a poisonous chemicalused to purify gold which gets intorivers and soils.
LoggingLogging involves cutting down of treesand sawing them for timber.
Accessing the AmazonThe construction of the 5,000 km TransAmazonian Highwaybegan in the 1970s but some sections are still not paved.
Slash and burn agricultureSlash and burn is a technique used to clear rainforest andprovide land for settlement, crops and ranching.This causes large areasof land to be deforested.Without a cover of trees,the soil becomes worn outand washed away by rain.Eventually, it becomesdifficult to grow cropsand either fertilizersmust be used or a newarea must be cleared.
Task – Use pg 52 if needed• Create the following table in your booksProblem Advantages Disadvantages My opiniondescription