lake kivu in rwanda is one of east africa's great lakes.s of generating a lot of revenue for the country, but something even more valuable is hidden deep within this lake. we're going 14km offshore to see the kiquatt project. it's where they're extracting methane gas from below the surface of the lake. it's the only project like it in the world. this barge took seven years to construct and lies on the lake's border with the democratic republic of the congo. the engineers here work 2a hours a day in 12—hour shifts, monitoring the conditions of the lake. kivu is highly saturated with gases, including methane and carbon dioxide from millions of years of decomposition and volcanic activity. these gases are kept under pressure at significant depths. the lake is 480m deep. however, any disturbance to the lake from seismic activity or a lava flow could result in the gases leaking out. kivu is one of only three known lakes in the world where the specific conditions for this catastrophic event could occur. they are known as the killer lakes. in1986,