There are believers today like William Layne Craig who do not believe Genesis and make up their own interpretation like theistic evolution. However, that's not God's word.
Something to consider: There are believers of Genesis who do not believe it is a literal account. For example, while the story is told with Adam being a single character, there are clues throughout Genesis that this was done for the sake of the story. Adam means man. Could it be that Adam was the first tribe/nation of man, and this nation lasted 930 years. Tribes began breaking off from Adam--The Tribe of Abel was massacred by the Tribe of Cain, and that tribe existed for 730 years.
There are other interesting interpretations as well. Long ago, Rabbis noted that what does not happen now, could not have happened then. Talking snake? Ever picture a particularly enticing cookie practically begging to be eaten? Could Eve had seen the snake approaching the fruit without fear? Non-literalists do not insist that any of Genesis happened this way, only suggest the possibility.