The air surveys of 1,036 reefs in the past two weeks found bleached coral in the northern, central and southern areas, James Cook University professor Terry Hughes said.
Aerial survey shows Great Barrier Reef bleaching more widespread than ever.
Boris Johnson's spokesperson says UK will not support move unless Moscow "ceases aggressive and destabilizing activity."
It was unclear who had fired the shots.
An Iranian professor imprisoned in the United States after being acquitted of stealing trade secrets has left the country and is on his way back to Iran, Foreign Minister Mohammad Javad Zarif said in...
Despite the plaudits from the World Health Organization, China sat on releasing the genetic map, or genome, of the virus for more than a week after three different government labs had fully decoded the information.
Some legal experts say the president does indeed have the authority under the Insurrection Act of 1807 to dispatch the military in states that are unable to put down an insurrection or are defying federal law.