How about this: God deliberately made the Earth unsuitable for everlasting life prior to Adam's creation.
Golden Age, 31 December 1924:
Do not misconstrue the statement that the ground was cursed - disfavored - for Adam and Eve's sake. The earth was created especially for the human race, and the whole of its creative process was arranged to suit their creative process, their instruction, testing, training and disciplining to be free moral agents, every man a miniature king (in the earth) patterned after the great Ruler of the universe.
"The heaven, even the heavens, are the Lord's; but the earth hath he given to the children of men." - Psalm 115:16
The Lord timed the creation of Adam when the reactionary physical changes on the uncompleted planet would devitalize him, causing his death, eventually. In that sense, for his sake the ground was cursed, was made unfavorable.
This pre-arrangement, specially ordered in Adam's case, was a part of the great creative plan relatively just now beginning to be put into operation...
The problem that causes us to grow old and die, they go on to explain, is the earth's atmospheric conditions - most notably the unsuitably high levels of nitrogen.