Antique cave art under threat
These 17,000-year-old cave paintings of bison, wild cattle, deer and other animals are facing a fungal attack for the second time in seven years. Nicknamed Sistine Chapel of pre-history, the caverns are at Lascaux in southwestern France. Scientists are treating the cave walls with a fungicide to check the spread of grey and black mould. Some blame the introduction of an air conditioning system in the cavern for the fungal invasions, while others believe that climate change is responsible for the outbreaks.