In X amount of years but sooner than we expect due to natural and human altered global warming that to a degree we ctan’t stop the earth is going to get real hot. Once the temperature reaches a certain point huge pockets of methane under the oceans and land masses will be released in a chain reaction that will cause earth to go runaway Venus, the methane will release other pockets of methane and earth will be uninhabitable. Now besides bio domes on the moon, mars, or upper atmosphere of Venus there’s one way humanity can stall or stop this effect. A theoretical weapon a satellite type of device that stores massive tungsten rods that are created in space and targeted and dropped to earth creating an asteroid type impact. If we make the rods big enough we can drop them and create a mass amount of dust in the atmosphere and create an ice age which is way more survivable that hot earth and we drop a tungsten rod whenever the effect starts to were off. Also this will give us time to habit-ate other planets as well as technological advances to safely mine and harvest the methane pockets as energy.