Your look at the five biggest and most buzz-worthy stories of the morning.
1. 4 Cases or Rare Rodent Disease Detected at Yosemite
Four cases of hantavirus – a rare rodent-borne disease- have been detected in people who visited Yosemite National Park earlier this summer. Two of the reported cases have been fatal. Park officials warn visitors to be aware of flu-like symptoms as fears of an outbreak rise.
2. Isaac Remains Tropical Storm
Isaac remains a tropical storm at this hour and is forecast to make landfall around the mouth of the Mississippi River and around New Orleans on Tuesday evening. The storm's biggest threat will be waters rising – possibly as high as 6 to 9 feet – in the New Orleans and Biloxi, Mississippi areas.
3. Obama Declares State of Emergency in Louisiana
President Obama has declared a state of emergency in Louisiana as the state braces for Tropical Storm Isaac. The declaration will ensure that federal funding is made available for emergencies related to the storm.
4. Arctic Ocean Ice Melts to Record Low
Ice in the Arctic Ocean melted to record low levels this summer, according to scientists. The National Snow and Ice Data Center reported that Arctic sea ice shrank 1.58 million square miles and will likely melt more in the weeks to come.
5. Aurora Shooting Victim Families to Speak
Relatives of some of the victims of the Aurora, Colorado movie theater shootings plan to speak publically sometime on Tuesday. They have scheduled a news conference to discuss events they feel need to be addressed.