The huge wildfire that broke out on August 17 in the world-famous Yosemite National Park, California, has entered its 4th week. The gigantic wildfire has burned 1,020 square kilometres, said the the US Forest Service, adding that firefighters were still struggling to contain the blaze. Officials have said the cost of struggling to extinguish the wildfire has risen to more than $89 million. It has become the third-biggest wildfire in the history of California.