What are the consequences of building dams and channeling/rerouting rivers? And what are the ecosystem impacts?

Large reservoirs will make a heavy load and may cause Earthquakes. Many mosquitoes will breed in the reservoir, making health problems. When the natural flow of the river is stopped, many living things, including fish and aquatic life, will lose their habitat. Many trees will be cut down. Many rare plants will be lost forever. Dams stop the flow of rivers and store enormous amounts of water over vast areas. This will require a lot of land. People living in this land need to settle.

Building dams and channeling/rerouting rivers can have several consequences, both positive and negative.

Some of the potential consequences include:

1. Positive consequences:

   • Generation of hydroelectric power
   • Regulation of water flow for irrigation and flood control
   • Creation of reservoirs for recreational activities and water supply

2. Negative consequences:

   • Displacement of communities and disruption of livelihoods
   • Alteration of natural water flow patterns, leading to downstream impacts
   • Loss of habitat and biodiversity due to flooding of land and changes in water levels
   • Disruption of fish migration patterns, affecting fisheries and aquatic ecosystems
   • Sedimentation and erosion downstream, impacting river ecosystems and coastal areas

Overall, the ecosystem impacts of building dams and channeling/rerouting rivers can be significant and complex, requiring careful consideration of both the short-term benefits and long-term consequences.