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.)
Most of them use gasoline as well, which would cause pollution. Even if it is completely electric, that energy had to come from somewhere, Like a power plant that produces pollution to create electricity. If you run on only electric, and get your energy from a windmill or waterwheel then it wouldn't!
Hydro energy has positive effects on the planet as it is a renewable energy source that generates electricity without emitting greenhouse gases. However, the construction of dams for hydroelectric power can disrupt ecosystems, alter water flow, and displace communities. Overall, hydro energy is considered a relatively clean and sustainable energy source.
Energy can cause damage on Earth through processes like burning fossil fuels, leading to air pollution and climate change. Overconsumption of energy sources can also deplete natural resources and disrupt ecosystems, impacting biodiversity and disrupting natural balance. Additionally, the extraction and production of energy sources can lead to habitat destruction and pollution of land and water.
Geothermal energy is green because it doesn't cause pollution.
Hydro-electricity is a clean source of energy. It is because energy is harnesses from flowing water. It does not cause pollution.
no
A few are solar, nuclear, biomass, hydro power
In hydro power or solar power the energy source is pollution free but the process of manufacturing and building the plant is not of course.
Nuclear, hydro, wind
no nly thermal pollution
hydro electricity is an efficient source of energy 1. pollution free 2. renewable 3. no worries of exhaustion of natural resources
it does not cause pollution
Yes. For example, burning logs for energy or fires causes pollution (smoke and ash)
it will cause air pollution
what is hydro energy
The energy in falling water can be captured by turbines and used to generate electricity. This is a renewable source of energy and is pollution free.