Discuss the extent to which human alterations to biomes have had an impact on the environment?
· Opening sentence : Human beings have continuously continued with interference of different biomes and thus bringing various modifications and impacts to these biomes.
· Intro : The extent of human alterations to biomes vary from negative effects to the environment caused by agriculture to the adverse effects of deforestation on the rainforest biome and its biodiversity. While other human alterations create sustainability in the environment and limiting the harm done to the biomes.
· Farming : Human modifications to the biomes through agriculture has had major influences on the environment. Unsustainable agricultural and aquaculture practices present the greatest immediate threat to species and ecosystems around the world.
· Around 50% of the world's habitable land has already been converted to farming land. Expanding oil palm plantations in Indonesia and Malaysia, for example, pose the most significant threats to endangered megafauna including Asian elephant, Sumatran rhinoceros, and tigers. Globally, the agricultural sector consumes about 70% of the planet's accessible freshwater. Unsustainable water use harms the environment by changing the water table and/or depleting ground water supplies.
· Excessive irrigation can also increase soil salinity and wash pollutants and sediment into rivers – causing damage to freshwater ecosystems and species as well as those further downstream, including coral reefs and coastal fish breeding grounds.
· Sustainability : But there are sustainable versions agriculture that use farming techniques that protect the environment as well as animal welfare. These human changes to the environment grow things without the requirement of toxic chemical pesticides, or practices that degrade soil, water, or other natural resources. By growing a variety of plants...