Fires in Brazil's Amazon rainforest worsened in the first week of September and are increasingly spreading into areas of untouched forest, satellite data showed as of Wednesday, after the number of fires likely reached a 10-year high in August.
The number of fires in Brazil's Amazon rainforest jumped 28% in July from a year ago, official data shows, as some environmentalists warned a jump this week could signal a repeat of last year's surging destruction of the world's largest rainforest.
Less rain and longer droughts are the major cause behind larger and more intense wildfires in the U.S. West, not higher temperatures and early snowmelt as previously thought, according to research released on Monday.
