ພວກນັກຊ່ຽວຊານ ລົງຄວາມເຫັນວ່າ ໄຟປ່າ ຢູ່ລັດຄາລີຟໍເນຍ ມີສາເຫດ ມາຈາກຫຼາຍຢ່າງ
With a death toll of at least 66, two devastating wildfires have ravaged parts of California. Experts suggest many causes for the fires, from population growth and equipment failures to climate change. Mike O'Sullivan reports that this year's deadly fires may signal there is worse to come.