I believe in the end of the world, but not the Earth, necessarily, just the world as we know it. I believe the human race will be wiped out, providing a more natural environment for the rest of Earth's species to thrive in. I do not believe in Apocalypticism, which involves a divine agent or force, like Jesus or God. I believe in millennialism, a collective, total transformation of our world. I think it will encompass many strains of millenialistic varieties, including catastrophic, progressive, avertive, and environmental.
Catastrophic because it will be huge, wiping out all the humans and the civilizations and infrastructure we built.
Progressive, not for us but for the earth's entire population, because eliminating the ignorance of and damaging effects of humans will make the world a better place.
I think at one point it was avertive, but that period has long passed. The culture of the Native Americans to not only respect but celebrate nature, keeping the Earth in mind when making decisions, could (mesh) with the new world. However, the current culture of pollution, unnecessary overdevelopment and destruction, and a sense of entitlement to use the Earth as human's own personal canvas makes averting the end of the world a thing of the past.
Environmental because the unpredictable and unstable condition the earth is currently in. Destructive natural disasters and extreme weather patterns are a given recently.
In the Hunger Games, the apocalypse merely gave the human race a chance to start over, but they made the same mistakes as the first time. They exploited the ores of the Earth by mining constantly. They disregarded the costs of pollution, creating huge buildings, trains, hovercrafts, and The Capitol.
They even missed the opportunity to start a new way of treating each other, humanely, equally, progressively. This series is an example of why the new healthier world order does not include the human race.