7th Century Earth had no cars or industrial smoke-stacks but “the religion of peace” wants us all thrust back to that time. Yes, Islam promotes a “green” civilization.
Yes, that kind of world is much easier to control and stay on top of.
The over-grazing of the Sahara, too, because of the adulation of the nomadic grazing lifestyle is also overwhelmingly Muslim cause. Same problem for the Middle East deserts and Central Asian ones - the marginal areas saw native Christian and Zoroastrian farmers killed, Muslim migratory herders moving in.