Explain why pollution prevention is undertaken as the first strategy in minimizing environmental risk.
Environmental risk can be managed by a number of strategies. The first employed is to prevent pollution at its source because this strategy eliminates the need to dispose of waste, restore habitats, or remediate contamination. In situations where pollution prevention is not possible or practical, then other strategies become important. Minimizing the amount of waste generated and properly disposing of the waste that is generated is one strategy, as is avoiding habitat damage.
Explain why using wind, solar, and biomass energy can lead to sustainable energy use.
Wind, solar, and biomass energy are all forms of renewable energy. Wind and solar energy use do not deplete a natural resource as is the case with coal and oil use. Using renewable resources is a sustainable practice, because it allows for continued energy use. Coal and oil reserves will eventually be depleted beyond the energy demands of the population because they are nonrenewable resources. Wind, solar, and biomass energy, on the other hand, can meet current energy needs and continue to meet the energy needs of the future.
What distinguishes brownfields from other land being considered for development?
Brownfields are properties that are potentially polluted. Unlike other properties, their development may be complicated due to environmental laws and regulations. If they must be remediated before development or redevelopment, this can significantly increase the cost of the project and result in developers seeking alternate, less expensive locations.
How does mining impact the environment?
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