The dam itself causes no pollution but the submerged vegetation in the reservoir behind the dam can decompose creating methane, a potent greenhouse gas. To prevent this it would be necessary to remove all vegetation and organic rich soil from the area proposed for the reservoir down to a clay base (or install a non-organic base).
In reality no source of energy can be said as pollution free. when hydro electricity is said as a cleaner source of energy it means that it is "cleaner" that some other source of energy. example: hydro electric power is cleaner that petroleum since burning of petroleum produces harmful gases but not in case of hydroelectricity the pollution caused by hydroelectricity is the ecological imbalance . to produce hydro electricity dams are constructed. for construction the forest nearby is cleared and therefore causes soil erosions and other related problems. it causes ecological imbalance because when water from rivers are stored in dams it causes water shortage in rivers and affect marine organisms.
Biofuel, or biomass, is sometimes the burning of vegetation to produce energy. Burning, especially incomplete burning, can release smoke and other air borne particulates as pollution. The carbon dioxide released was only recently removed from the atmosphere (when the vegetation was growing) so it is not a pollution causing global warming. (This is why biomass and biofuel is counted as clean renewable energy.)
Yes, garbage can cause pollution when it is not disposed of properly. Improperly disposed garbage can release harmful chemicals and greenhouse gases into the environment, contaminating air, water, and soil. It is important to manage and dispose of garbage responsibly to reduce pollution.
There is no known evidence of pollution causing earthquakes. However, earthquakes can inadvertently cause pollution by damaging areas that contain waste facilities, factories, or other places that may contain waste or chemicals that are dangerous to the environment.
Air pollution can cause long-lasting and irreversible damage to the environment, including harming plant and animal life, contaminating water sources, and contributing to climate change. The accumulation of pollutants in the air can have serious consequences for ecosystems and human health, making it crucial to address and reduce air pollution.
They are a useful energy sourceThey cause no pollution when producing energyThey are expensive to build
dams cause many fishs' life cycle
no
yes
No, wind does not cause pollution
Habitat loss, overfishing, building of dams and pollution.
Matter does not cause pollution. Human beings do.
There isn't any fossill fuels that don't cause pollution. All fossil fuels cause pollution.
they cause pollution because it is harmful to the environment.
pollution
soil pollution. burning can cause air pollution and breathing cause respiratory problems. water pollution.
The flooding has all but been solved by dams, but there is a pollution and other problems. The links below addresses just one aspect of construction and a paper on pollution