So I got to thinking.. we're busy sending small bits of our planet out into space, which reduces our mass, which should change our orbit around the sun. I've long forgotten the orbital math that I learned way back in school, but for funsies would someone with a better memory calculate the difference in our orbit around the sun 1M, 2M and 1B years from now assuming we launch 10 tons of material out of our gravitational pull today? I expect that with less mass but the same orbital velocity, earth will inch closer to the sun, perhaps adding to global warming, but it would be neat to see the numbers.