i can't help you if you think this was a serious question.
i and another poster even took it like it was serious and gave it the answer it deserved. now you have another "serious" question.
now i have a serious question:
are you stupid or a troll or a stupid troll?
Really? So we are suppose to worry about something that has no meaning, purpose, or reason for existing?
The question was serious: What purpose does glacial ice serve in nature?
Your answer is an assumption that it serves no purpose, so the logical conclusion is, why should we worry about keeping it?
However, you assumption is wrong, it does serve a purpose, as does everything in nature, a very scientific purpose actually. But the reason I asked this question, in spite of knowing the answer myself, is because if you look through all your environut science, the information is omitted. The reason they won't tell you, is because the answer negates concern for the environment and places the concern on human survival, something which your scientists and corporations cannot profit from.