Consider the song a prayer to the unthinking, uncaring universe. Like all prayers, if you wait long enough, and keep your mind open to anything that could possibly be construed as a positive result of your desires, it will come true.
Behold, there will be snow in Africa.
Thank you Bob Geldof. Thank you hippy drummers. The universe has answered your prayers and given snow to an area ill-equipped to cope with it.