by Marion DOUET Agence France-Presse LAKE KIVU, Rwanda (AFP) – The engineers aboard the floating power station on Lake Kivu could only watch nervously as the volcano in the distance erupted violently, sending tremors rumbling through the water beneath them. It was not the lava shooting from Mount Nyiragongo last May that spooked them, but the enormous concentrations of potentially explosive gases within Kivu, one of Africa’s great Rift lakes lying between Rwanda and the Democratic Republic […]