Cars are a major source of VOCs. Ozone smog effects, cancer, and other serious health problems. Ozone smog effects, vegetation damage.
Print Full Document Overview Hydropower has traditionally been considered environmentally friendly because it represents a clean and renewable energy source. The term renewable refers to the hydrologic cycle that circulates water back to our rivers, streams, and lakes each year. At hydroelectric projects, this water is used as fuel to generate electricity.
In contrast, fossil fuels like coal, natural gas, or oil must be extracted from the earth and burned to produce electricity. The term clean is also used because production of electricity with hydropower does not pollute the air, contribute to acid rain or ozone depletion because of carbon dioxide emissions, or like nuclear power leave highly toxic waste that is difficult to dispose of.
And while there are many benefits to using hydropower as a renewable source of electricity, there are also environmental impacts. Because there are over hydroelectric projects in the Northwest, understanding such ecosystem and habitat issues is vitally important.
Examining these issues, however, needs to be done in a broad context for three reasons. First, no two hydroelectric projects are exactly alike, and many are very different. Thus, while issues can be examined in general terms, one should not draw conclusions that all or even most projects have similar environmental impacts.
Second, while this discussion focuses on hydroelectric projects, one should not conclude that all dams are used to produce electricity.
Most dams are used for purposes such as irrigation, flood control, and water treatment. Further, many dams support a combination of activities.
For example, dams on the mainstem of the Columbia River are used for irrigation, flood control, transportation, recreation, and the production of electricity. Examples of other non-hydropower related impacts include grazing, logging, agricultural activities, mining, land development, and the harvesting of fish.
Determining the relative impact of these activities versus hydroelectric projects is very complex and the subject of ongoing debate. For information about the many steps that are being taken to reduce or eliminate ongoing impacts, refer to the Protection, Mitigation, and Enhancement Strategies At Hydroelectric Projects.
From this understanding, possible changes to fish and wildlife habitat can be explored.The control of SO2 emissions in the United States was initially motivated by the air quality standard for SO2 (SO2 is a toxic gas) rather than by concern over acid rain; the original Clean Air Act of did not include acid rain under its purview.
The unequal distribution of acid rain over the United States is closely correlated with burning ____ fuels Fossil Carbon dioxide in the atmosphere has .
Advantages and Challenges of Wind Energy. The United States has a vast domestic resources and a highly-skilled workforce, and can compete globally in the clean energy economy.
Wind turbines don't produce atmospheric emissions that cause acid rain, smog, or greenhouse gases. An official website of the United States government. We've made some changes to schwenkreis.com If the information you are looking for is not here, you may be able to find it on the EPA Web Archive or the January 19, Web Snapshot.
Acid precipitation, or acid rain, can causes significant impacts on freshwater, coastal, and forested ecosystems (e.g., Likens et al., ). Both NO 3 −, from NO x emissions, and SO 4 2− from SO 2 emissions contribute significantly to acid rain.
Human Impact on Environment. STUDY. In addition to statues and building, acid rain regularly damages stained glass, railroad lines, airplanes, cars, steel bridges, and underground pipes.
Europe was forced to lift its ban due to pressure from the World Trade Organization and the United States.