Nov 25, 2009

Human activities - endanger the ecosystems

Human activities often affect whole ecosystems.
Conflicts normally arise between the need to meet the immediate human demands in short term and the need to protect and conserve ecosystems from long-term damage.

-soil erosion
-flash floods
-climatic changes
-the loss of biodiversity
-the greenhouse effect and global warming

Burning of fossil fuels
-greenhouse effect
-global warming
-air pollution

Overuse of fertilisers in intensive farming
-water pollution

Dumping of domestic and industrial waste
-water pollutions