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Human causes of Biodiversity loss (Climate Change (Certain human…
Human causes of Biodiversity loss
Climate Change
Certain human activities have also been identified as significant causes of recent climate change, often referred to as global warming.
Pollution
Agricultural run-off, which contains a variety of fertilizers and pesticides, may seep into ground water and rivers before ending up in the ocean. Burning of Fossil Fuels: Sulfur dioxide emitted from the combustion of fossil fuels like coal, petroleum and other factory combustibles is one the major cause of air pollution.
Habitat Loss
Harvesting fossil fuels, deforestation, dredging rivers, bottom trawling, urbanization, filling in wetlands and mowing fields.
Overexploitation
Overexploitation means harvesting species from the wild at rates faster than natural populations can recover. Overfishing and overhunting are both types of overexploitation.
Species extinction
The rapid loss of species we are seeing today is estimated by experts to be between 1,000 and 10,000 times higher than the natural extinction rate.*
Illegal wildlife trade
Poaching elephants for ivory, tigers for skin and bones. Some animals are caught or harvested from the wild and then sold as food, pets, ornamental plants, leather, tourist curios, and medicine.
Invasive species
Invasive species are ‘alien’ or ‘exotic’ species which are introduced accidentally or intentionally by human. They can harm the environment, the economy or even, human health.
