climate change November 2, 2021 5:49 pm Miami-Dade Mayor Speaks at Climate Change Conference Miami-Dade Mayor Daniella Levine Cava spoke at the COP 26 Climate Change Conference in Scotland. NBC 6’s Amanda Plasencia reports. US & World Videos 0:20 Video shows boaters dumping trash into the ocean 1:23 Video shows security guard grab gunman who opened fire at Florida party 2:36 Large federal investigation into suspects in Homestead woman's fatal abduction 0:34 Shooting investigation underway in Miami Gardens neighborhood 0:45 Orange County sheriff discusses arrest of ‘potential serial killer'