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How human impacts the environment D94 (problem (water pollution…
How human impacts the environment
D94
Humans impact the environment in several ways
Common effects
Decreased water quality
increased pollution
Greenhouse
Gas emission
depletion of natural resources
global climate change
Some of these are the direct result of human activities, whereas others are secondary effects that are part of a series of actions and reactions
problem
water pollution
Nutrients, like nitrogen and phosphorus, are essential to the health and survival of aquatic plants and animals
However, humans introduce large quantities of nutrients, primarily through overuse of fertilizers
Too many nutrients can rapidly reduce water quality by causing overgrowth of certain bacteria and algae that use the oxygen necessary for other species to survive
One of the biggest impacts humans have on aquatic systems is excess nutrient inputs
Air pollution
The majority of air pollution is the result of human activities
For example, increased fossil fuel combustion from motor vehicles, industrial factories and power plants all pump large quantities of air pollutants, such as carbon monoxide, ozone and nitrous oxides, into the atmosphere
Other air pollutants, such as lead-based compounds, can lead to serious health effects like cancer, or other types of reproductive effects and birth defects
Climate Change
According to the U.S. Environmental Protection Agency, human activities are largely responsible for an increase in temperature around the globe, primarily due to carbon dioxide and other greenhouse gas emissions
This increase in temperature is leading to changes in where crops can grow and where certain fish or animals can be found, all vital for feeding an increasing human population
The rise in global temperatures is also causing glaciers to melt, releasing water that causes sea levels to rise and threaten coastal communities and economies that rely on coastal resources