Nov 2: Hydroelectric dam still a greenhouse gas source after ten years

Living case update:

Hydroelectric power is often promoted as green energy, yet dams, especially in the tropics, can be significant sources of greenhouse gas emissions. When built, reservoirs trap vegetation, which, as it rots, emits both methane and carbon into the atmosphere. A new study found that a dam in Lao PDR remained a significant source of greenhouse gas emission even a decade after construction.

Read more at Mongabay