There might be Hope in regard to radiation here on earth

About every 10 days or so radiation in the air that isn't brought to earth by wind or storm or rain or snow or hail circles the earth once. So every 10 days you can be sure that (at least in the northern hemisphere) that some radiation is where you live from this if you are in the northern hemisphere. But, eventually some of it will be everywhere and inside of every body.

But just like with AIDS, some people are actually immune to AIDS, it is likely that there are human bodies that are immune likewise to some of the lower doses of radiation and can actually survive one way or another without getting cancer, leukemia, getting sick or dying. And likely these genetic types will be part of those who survive the "natural selection process" of life on earth during the next several thousand years here on Earth. These will be our natural descendants who can actually survive the amount of radiation  that they will have to.