'We really dodged a bullet', says Tampa mayor05:03
Tampa Mayor Bob Buckhorn reports on Hurricane Irma's impact on his city.
How Arctic warming affects you right here and now07:00
Alaska under tsunami watch after 7.0 earthquake hits near Anchorage02:57
Federal report warns climate change will greatly affect health, economy03:09
Death toll rises as fires continue to gut California01:38
Florida Panhandle works to recover from Michael09:31
Cost of hurricane could skyrocket with damage to fighter jets01:34