The 18,000-year-old cave art in Lascaux cave is under under attack by mold and fungus. "The cave was completely disturbed," said Clottes, 78. "In 1947 alone, they dug out 600 cubic metres of sediment to make an entrance and concrete path and installed lighting for the public." Six hundred cubic metres (22,000
Biocides used in recent years to treat the growth of a black fungus on the art-festooned walls of the Lascaux cave in France have eliminated a lot of bacterial and fungi populations, but have also created biocide-resistant strains. Human presence has caused problems in Lascaux almost since its discovery in 1940.