Three people were injured in two separate shark attacks in a single day in the Florida panhandle, prompting authorities to warn beachgoers to stay alert. Correspondent Brooke Shafer joins "NewsNation Now" with the story as experts suggest climate change may be responsible for the unusually high shark activity. #SharkAttacks #Florida "NewsNation Now" is a no fluff, no filler newscast hosted by Nichole Berlie and Connell McShane featuring up-to-the-minute news drawing from a network of journalists across the U.S. Weekdays starting at 1p/12C. NewsNation is your source for fact-based, unbiased news for all America. More from NewsNation: newsnationnow.com Get our app: trib.al/TBXgYpp Find us on cable: trib.al/YDOpGyG How to watch on TV or streaming: trib.al/Vu0Ikij