This is a worst case scenario. You could freeze people in glaciers at zero energy and revive them when the technology becomes reliable.
This answer is cold and calculating, so let me apologize in advance. First of all, let me preface this solution by explaining that the brain is identical in structure to that of a computational neural network. A computational neural network can be paused with a press of a button, and in freezing temperatures the human brain enters an identical state.
Current technology is not sophisticated enough to bring the human body back from a frozen state. The technology will probably be developed during the next 1.75 billion years of the Earth's existence:
This idea of people dying and then being ressurected in a paradise is very similar to Christian biblical stories, so this solution might be acceptable to a large population. The solution could involve returning people to life in shifts, so if Muslims don't want to live with Christians in paradise, they can take turns.
Introducing this idea might be a tough sell, so it might be easiest to begin offering this to people who are terminally ill or suicidal. The freezing would be energy efficient by placing the frozen bodies into icebergs.
What actions do you propose?
Who will take these actions?
Where will these actions be taken?
What are other key benefits?
What are the proposal’s costs?
I am very serious about this proposal, but to make it socially acceptable, here is my Soylent Green reference: