The reasons for the decline is womens rights, now that women are expected to work instead of caring for kids, less of them want children now. But a decline in population is a good thing for the enviromen,t because it means less buildings which means more green, it also means less polution. But the bad thing for WN is that its going to effect the whites more, because its our women that go to work, while the asians are happy with benefits. I also doubt that Britons numbers are going to go down because imigration is so extreame here.