I chose Trappist-1 f as the planet we should move to since it is relatively similar to earth. Trappist-1 f has a radius of 1.045 times the radius of the earth and a mass that is 0.68 times the mass of earth. Although Trappist-1 f only has an orbital radius of 0.0096 times the orbital radius of the earth and has an orbital period of 9.2 earth days, this can be taken advantage of as the planet would be tidally locked. This means that on the outer edges of the equator of Trappist-1 f, the climate will be extremely stable.
We will have to leave earth because all life on it is being threatened. Either that be the occurrence of a nuclear war or environmental degradation, humans will be unwillingly forced out of our home planet. While the move to a different planet may be seen as a last ditch effort to save mankind, it is in reality, an effort to preserve the destructive tendencies of humankind.
Our entire way of life will need to be redefined on our new planet. Not only will we need to adapt to new environments, we will also need to adapt to a new way of thinking. Sustainability will have to be an integral part of our life, as the repetition of the actions that occurred on earth will simply yield no result other than the one we would have already experienced once; the uprooting of humankind to a new home.
Frank Chen And The Incredible Work 