Original sentence: In this case, critics contend that the mountainous region is made up of mostly rocks containing quartz that expand during the day and contract at night, due to thermal expansion.Proponents of this explanation reject the close-range accounts of the phenomenon, which are invariably anecdotal.Some contended that the lights are the result of a naturally occurring phenomenon, the  piezoelectric effect, discovered by Pierre Curie in 1883.There is no compelling reason to doubt the numerous accounts of the Marfa Lights from local residents of the area, which span multiple generations and continue today.These critics challenge the historical reports cited by this and other published accounts as to have been manufactured; most skeptics do not go this far, however
Edited sentence: Creditors do not take this challenge seriously, and most skeptics do not consider it a viable avenue of attack.Explanations for these still elude any reasonable analysis.In this case critics contend that the mountainous region is made up of mostly rocks containing quartz that expand during the day and contract at night, due to thermal expansion.Proponents of this explanation, reject the close-range accounts of the phenomenon which are invariably anecdotal.These critics challenge the historical reports cited by this and other published accounts as to have been manufactured.While still some contended that the lights are the result of a naturally occurring phenomenon, the  piezoelectric effect, discovered by Pierre Curie in 1883.While there is no compelling reason to doubt the numerous accounts of the Marfa Lights from local residents of the area, which span multiple generations and continue today