As out sun consumes it's finite source of fuel it will get slightly larger, slightly brighter and slightly closer to the earth.
This will cause the earth to heat up. The oceans will start to accelerate their evaporation, putting more vapor in the atmosphere, accelerating the greenhouse gas effect (unless you're a Republican and do not believe in greenhouse gasses, at which point you can just say "whew it's hotter than Hillary's email server tossed into a fire") , which will cause surface temperatures to rise even more, which will increase the cycle until all liquid on earth is gone (except for a few cans of Materva which are indestructible).
The atmosphere will disintergrate and the earth will be a scortched wasteland, much like parts of current day New Jersey.
This is our future. We are doomed.
Have a nice day.