Tibet Dam-Building Raises Flood and Earthquake Concerns Downstream

Heavy rain and swollen rivers have caused serious flooding in parts of Nepal and India.

Some of the rivers begin in Tibet and flow into other countries.

China has built dams on some Tibetan rivers and plans an enormous new dam called Medog.

Supporters say dams can provide much-needed electricity and improve energy security.

Critics worry that the dam would be built in an area where strong earthquakes can happen.

An earthquake or dam failure could send dangerous water, mud, and landslides downstream.

Changes to sediment could also harm farms and ecosystems.

Researchers are calling for safer planning, better warnings, and more openness about the project.