4 months after people; In Norway, the Svalbard Global Seed Vault is the world's reserve of crops. Seeds from every plant in the world are kept there in case agriculture ever needs to be restarted on Earth. Without people, it is beginning to warm up, threatening the lifespan of the seeds.
50 years after people; The plant seeds frozen in the Svalbard Global Seed Vault have begun to die. The first seed to die are the lettuce seeds.
20,000 years after people; The final seeds in the Svalbard Global Seed Vault die, for the vault nicknamed the doomsday vault, doomsday is here.
80,000 years after people; while the seeds has died, the seed vault itself, continues to withstand, due to the cold weather, it will remain recognizeable for a very long time.