Original sentence: Those who think that climate is changing, but contend that human activity is in no way responsible for the change - in other words, the climate would have changed if there were no humans on the planet.Those who think that climate is changing, but view this change as only partially caused by human/industrial activity with the balance of the change caused by circumstances beyond human control.Those who think that the climate is changing and that human/industrial activity bears the major responsibility for the change.Those, who deny that the climate is changing, view the reported temperature increases as flawed, due to incorrect analysis, or within the natural variation of the current climate and not conclusive evidence of climate change
Edited sentence: Those who accept the scientific evidence that climate is changing, but contend that human activity is in no way responsible for the change - in other words, the climate would have changed if there were no humans on the planet.Those who accept the scientific evidence that climate is changing, but view this change as only partially caused by human/industrial activity with the balance of the change caused by circumstances beyond human control.Those who accept the scientific evidence that the climate is changing and that human/industrial activity bears the major responsibility for the change.Those, who deny the scientific evidence that the climate is changing, view the reported temperature increases as flawed, due to incorrect analysis, or within the natural variation of the current climate and not conclusive evidence of climate change