I might also do one based on rural/remote habitat fragmentation, i.e. the amazon jungle, if this works out nicely.
Description
A recent environmental study showed that habitat fragmentation, the process of splitting large areas of habitat into smaller pieces, can be severely detrimental to the native wildlife. Even @@NAME@@ was named as an example of this effect, as the inevitable expansion of @@CAPITAL@@ makes inroads into previously untouched @@ANIMAL@@ habitat.
Validity
some eco-friendliness, over 250mil population and some urbanisation
Option 1
Dr @@RANDOMNAME@@, the author of the study, heaves a stack of paper onto your desk, as @@HE@@ explains: "We have tons of solid scientific evidence backing up this study. When you split existing habitats by putting roads through them, the native animal populations become disjointed. This means you can lose the Red-Faced @@ANIMAL@@ in one of these fragments without noticing, but before long, it's disappeared from 20 or 30 fragments, and become an endangered species. You need to establish wildlife corridors and animal crossings linking green spaces across @@NAME@@ to prevent this effect from devastating native wildlife."
Validity
All
Outcome
it's difficult to see the sky for the animal crossing bridges
Option 2
"That doesn't go far enough!" says @@RANDOMNAME@@, who smells faintly of leaves and @@ANIMAL@@ urine. "Our cities have expanded too much. Our entire population could fit in an area half the size of @@CAPITAL@@. If we condensed our population, there would be no need to expand through these natural habitats! Now, I'm sure that there will be somewhat reduced quality of life with such cramped living conditions, but it will be worth it when the @@ANIMALS@@ thrive."
Validity
All
Outcome
a mansion in @@CAPITAL@@ is 20 square metres of space to yourself
Option 3
"Both of those solutions seem a bit extreme," ventures the Mayor of @@CAPITAL@@. "The Red-Faced @@ANIMAL@@s are doing fine, and this habitat-fragmentey-wotsit is just causing unnecessary panic. Real estate in @@NAME@@ is at a premium already! In fact, why don't we reclaim some of those green spaces for urban development? After all, they're supposed to be bad for the environment, and I'm sure our economy would like the boost."
Validity
All
Outcome
buying real estate near a living @@ANIMAL@@ leaves @@DEMONYMPLURAL@@ with red faces