The recent approval of five new coal-fired power plants and two new nuclear units casts doubt on Moon Jae-in's promised transition to renewable energy.
Can South Korea bring off a dramatic increase in renewable electricity generation, as pledged by its new government? There's certainly enough energy around.
The US Army is due to leave USAG Yongsan, its base in the heart of Seoul, next year. But who will foot the huge clean up bill for the pollution it leaves?
The Four Rivers project is back in the news again. It is one of S Korea's biggest environmental issues. What is this project? Why is it so controversial?
Environmentalists have poured scorn on conservative presidential candidate Hong Joon-pyo's plan to build untold numbers of "drinking water dams."
South Korean campaigners have won a legal battle to obtain details of groundwater pollution on the US military base at Yongsan. The data is troubling.