Climate change has caused abrupt drops in temperature in Peru’s southeast Amazon driving indigenous formerly uncontacted people out. According to Survival International, about 200 armed Mashco-Piro tribe’s men attacked the community of Monto Salvado with bows and arrows. The previously uncontacted tribe took weapons and destroyed homes during the raid.
“We’ve never heard reported such a large movement of uncontacted people,” Lorena Prieto, director of Peru’s office of Peoples in Isolation and Initial Contact, told the Guardian. The dire circumstances are aggravated by oil companies, logging and drug trafficking. The loss of forests has fostered a drier climate and less photosynthesis to sequester carbon. Farmers in other parts of Peru have also reported colder than normal temperatures and that along with the drier climate threatens food supplies.
http://america.aljazeera.com/articles/2014/12/24/peru-uncontactedtribe.html
http://www.theguardian.com/world/2014/dec/23/peru-evacuates-village-tribal-raid
http://www.survivalinternational.org/news/10617