A shocking dead zone where even the algae are dying and the entire area has a foetid smell has appeared over several kilometres in a lake that holds almost a quarter of the world’s fresh surface water. The dead zone showing several kilometres the late covered with a strange green slick was filmed by Tatyana Jdanova who shared the images with Newsflash. She said she had taken them while visiting Lake Baikal, positioned between the Russian federal subjects of Irkutsk Oblast and the Republic of Buryatia.