History Main / EarthThatUsedToBeBetter

* ''Manga/TwilightStarSuiAndNeri'': A somewhat pleasant example of this trope as Earth is still a living planet. But due to CasualInterstellarTravel (Class-3 type) being commonplace, most if not all planets have been colonized and have been inhabited by most people from Earth, including Planet [=P53=]. Two of the story's characters including Shida and Yurayura's grandson are examples of people not from Earth (the former being a grad student in another planet and the latter being born from another planet). The radio broadcast in Chapter 1 immediately affirms that another planet, [=104M=], would be in the process of colonization within another month and with [=D93=] expecting 30,000 people within November. As a consequence, Earth's population has decreased to a 3%, verging into becoming a [[InsignificantLittleBluePlanet footnote]] in the history books.

* ''Manga/TwilightStarSuiAndNeri'': A more pleasant example of this trope as Earth is still a living planet. But due to CasualInterstellarTravel (Class-3 type) being commonplace, most if not all planets have been colonized and have been inhabited by most people from Earth, including Planet [=P53=]. Two of the story's characters including Shida and Yurayura's grandson are examples of people not from Earth (the former being a grad student in another planet and the latter being born from another planet). The radio broadcast in Chapter 1 immediately affirms that another planet, [=104M=], would be in the process of colonization within another month and with [=D93=] expecting 30,000 people within November. As a consequence, Earth's population has decreased to a 3%, verging into becoming a [[InsignificantLittleBluePlanet footnote]] in the history books.

* ''Manga/TwilightStarSuiAndNeri'': A more pleasant example than the others presented as Earth is still a living planet. But due to CasualInterstellarTravel (Class-3 type) being commonplace, most if not all planets have been colonized and have been inhabited by most people from Earth, including Planet [=P53=]. People including Shida and Yurayura's grandson are examples of people not from Earth (the former being a grad student in another planet and the latter being born from another planet). The radio broadcast in Chapter 1 immediately affirms that another planet, [=104M=], would be in the process of colonization within another month and with [=D93=] expecting 30,000 people within November. As a consequence, Earth's population has decreased to a 3%, verging into becoming a [[InsignificantLittleBluePlanet footnote]] in the history books.

* ''Manga/TwilightStarSuiAndNeri'': A more pleasant example than the others as Earth is still a thriving planet. Due to CasualInterstellarTravel (Class-3 type) being commonplace, most if not all planets have been colonized and have been inhabited by most people from Earth, including Planet [=P53=]. The radio broadcast in Chapter 1 immediately affirms that another planet, [=104M=], would be in the process of colonization within another month and with [=D93=] expecting 30,000 people within November. As a consequence, Earth's population has decreased to a 3%, verging into becoming a [[InsignificantLittleBluePlanet footnote]] in the history books.

* ''Manga/TwilightStarSuiAndNeri'': Due to CasualInterstellarTravel (Class-3 type) being commonplace, most if not all planets have been colonized and have been inhabited by most people from Earth, including Planet [=P53=]. The radio broadcast in Chapter 1 immediately affirms that another planet, [=104M=], would be in the process of colonization within another month and with [=D93=] expecting 30,000 people within November; as a consequence, Earth's population has decreased to a 3%, verging into becoming a [[InsignificantLittleBluePlanet footnote]] in the history books.

* In "Literature/TheMachineStops", some unspecified catastrophe has rendered the surface of the Earth almost barren, with cold, thin, poisonous air. Humanity lives [[BeneathTheEarth beneath the surface]] in a vast complex of cells controlled by the titular Machine.