drought - A long period when there is little or no rain., erosion - Soil being gradually damaged and removed by the waves, rain, or wind., logging - The activity of cutting down trees in order to use their wood., forest fire - A fire burning in an area of land with many trees, that is difficult to control and sometimes spreads quickly., intensive farming - A way of producing large amounts of crops, by using chemicals and machines., contamination - The process of making something dirty or poisonous., mining - The industry or activity of removing substances such as coal or metal from the ground by digging., genetically modified - A plant or animal that has had some of its genes changed scientifically., famine - A situation in which there is not enough food for a great number of people., waste - What is left after useful parts of any material have been removed.,

Environmental Problems

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