Comments

Deadly Gas, Cheap Power

To live on the banks of Africa’s Lake Kivu is to risk your life every day. Large amounts of methane, carbon dioxide and hydrogen sulfide gas are dissolved in various layers of the lake’s deep waters. Scientists warn that a disturbance such as a volcanic eruption or earthquake could cause a redistribution of the lake’s waters and the gases in them. This shuffling, known as an overturn, could unleash an invisible, suffocating cloud of these compounds—a rare event known as a limnic eruption—killing as many as two million people nearby.