A fisherman sits in a traditional wooden boat on the shore of Lake Kivu in Goma, in the east of the Democratic Republic of Congo on August 11, 2013. “There are no big fish because of the gas, we only catch small whitebait” said one fisherman, referring to the carbon dioxide and methane which are saturated in Lake Kivu, posing the risk of a limnic eruption. AFP PHOTO / PHIL MOORE