Fracking - Is a technique for extracting gas trapped underground, Overfishing - Capacity to extract resources from the sea and the ocean exceeds its capacity for renewal., Acid rain - Is one of the consequences of atmospheric pollution., Deforestation  - Replanting trees in an area where forest once existed., Greenhouse effect - Is a natural phenomenon and beneficial to us, Contamination of rivers - Alteration in the quality of these natural waters by materials, Mega-mining - Is a chemical extractive industry that generates serious impacts to all ecosystems in the world., Exploitation - Extraction or excessive use of a natural resource., Melting of the poles - Melting of these parts of the Earth, Desertification - Land degradation in arid, semi-arid and dry sub-humid areas resulting from various factors,

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