Roads can cause mass movements due to all of the following EXCEPT vibrations from the road
increased weight when on top of a hill
removal of material to make a road flat when on a slop
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decreased weight on top of a slope due to removal of trees.

This is all you, but i can give you some topics that you could try. if it rained when you want to do something outdoors, it 'limits' that human activity. maybe you want to do an experiment that goes throughout the whole year and you have to have above freezing the entire year. this 'limits' your activity. i thought of those just off of the top of my head. something that gets to me that might be getting to you is you are thinking too hard about what to do. think simply, and if it is too simple, then bump it up just a little bit.

Developed countries will see a decrease in natural resources, because their population will decrease.

Ineed you to put up a picture of the map so i can you as much as possible.

Idon't  see a map but it goes to d.christianity with about 2.1 followers today