This document summarizes a presentation on environmental degradation. It discusses several types of environmental degradation including deforestation, desertification, emissions, and erosion. Deforestation occurs due to logging, burning of forests, and clearing of land for livestock and agriculture. Desertification is caused by overgrazing, over-cultivation, increased fires, water impoundment, and deforestation. Emissions release chemicals into the air from both natural processes like volcanoes and human activities like burning forests. Erosion transports solids through wind, water, ice, gravity, and living organisms which can damage land when vegetation is removed. The document outlines causes and effects of these processes and concludes that policies need to address holistic environmental

3. Types of environmental degradation Emmision errosion extinction desertification Deforestation types

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