This is not entirely true, dams are feeding grounds for methane-producing microbes which cause climate harm. Aside from that, even small scale dams damage local ecosystems significantly - at the scale China is planning, their dam will be incredibly damaging.
Hydropower is literally good for the climate.
Killing all humans is better.
You first first
Are you telling me to kill myself or other people?
This is not entirely true, dams are feeding grounds for methane-producing microbes which cause climate harm. Aside from that, even small scale dams damage local ecosystems significantly - at the scale China is planning, their dam will be incredibly damaging.
https://www.science.org/content/article/hundreds-new-dams-could-mean-trouble-our-climate
https://earth.org/dams-economic-assets-or-ecological-liabilities/
https://www.dw.com/en/five-ways-mega-dams-harm-the-environment/a-53916579