We cannot belittle global actions like deforestation , fishing etc. This may causes consequences affecting the lives of the people.The world's ecology is so complex, so fragile, so interdependent, that an ecological upheaval of the flora and fauna of one region of the world (i.e. the destruction of rain forests) can affect the entire planet.
Increasing human population numbers are putting great pressure on many of these limited resources and deplete those resources which can not be renewed. Many different natural processes occur within those ecosystems influencing humans. Some of these processes include atmospheric quality. soil generation and conservation, energy flow, the water cycle, waste removal and recycling. Human activities are altering the equilibrium involved in these natural processes and cycles. If these changes due to human activities are not addressed, the stability of the world's ecosystems may irreversibly affected.
Humans damage ecosystems by harvesting trees that are homes to hundreds of different organisms. We damage the atmosphere by releasing greenhouse gases when we drive cars or use electricity. We pollute water with chemicals and waste products from factories. We can't reverse the damage as these are the consequence of our doing.
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