A pipe installed in Lake Nyos in Cameroon this January has sucked 20 million
cubic metres of carbon dioxide out of the lake so far. This will stop disasters
like that in 1986, when a cloud of CO2 killed 1700 people. A second
lake with the same gassy problem could soon get the same treatment. And Rwanda
is now keen to extract the CO2 and methane from its Lake Kivu. The
methane could supply Rwanda with energy for 200 years.
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