There are multiple reasons for human related environmental problems namely ozone depletion leading to climate change, destruction in natural habitats, adverse effects von marine life, and decline in freshwater. With The depletion of the ozone layer leading to climate change, human activities cause a very large amount of harmful gases to be emitted into the atmosphere breaking down the ozone layer. These gases can be carbon dioxide, burning of fossil fuels, emitting of chlorofluorocarbons, and also even methane gas from the large cattle farming occurring globally. With a growing pollution more demand is set on food and transportation hence, more fossil fuels need to be burnt and more cattle need to be farmed. These cause a rise in temperature because the ozone is unable to absorb harmful UV radiation and protect the earth. With the destruction of natural habitats, forests, wetlands, coral reefs, the ocean bottom, are destroyed and reasoning for this is to make space for the growing human populations, to free up land for agriculture and cattle farming, and also human activities cause climate change. With farming constantly, artificial fertilizers are used, and this leads to it being washed into dams and rivers which then case overgrowth of plants starving the fish. Chemicals and toxins find their way into rivers which lead to the ocean and cause ocean dead zones. Overfishing cause fish populations to drop and therefore, natural predators starve and the food chain is affected. Coral reefs get damaged in the process as well. With the rise in temperatures the ice caps in the poles melt causing loss of habitats for animals such as polar bears. Adverse effects on marine life are caused by overfishing and not only that but in the process of fishing, fish that are not the targeted species for fishing get caught in the nets. This affects the fish population which affects the food chain and essentially, the ocean environment. Fish populations are not given the chance to recover. With regards to decline in fresh water, people overuse water with growing populations and the land cannot sustain so many inhabitants. Pollution causes fresh water to become contaminated, flood cause water to be lost because natural sources of water are destroyed by storms, and rising temperatures cause drought. In South Africa the growing population, coal mines, and industrialisation lead to air pollution which contributes to the ozone layer depleting. Natural habitats are destroyed by the growing population and need for more space for cities and urban areas in South Africa. Misuse of the land with overgrazing causes erosion in areas. Industrialisation causes places such as Alexandra in Johannesburg to be heavily polluted and overpopulated. Affects on marine life occurs with overfishing in the oceans of South Africa. Fresh water is declining because pollution from industrial areas causes water to be contaminated. The poor service delivery in South Africa causes pipes to leak constantly and cause water loss. Droughts experienced in places such as the Western Cape causes water shortages and call for water to be transported to the area from places with plentiful water.