In an Ice Age, cold dry wind blows hard directly west to east; the trees die out leaving cold dry grassland with lots of sand dunes all the way through Florida. The three bands of weather from the poles to the equator change to just two bands. Adequate rainfall for field crops will only exist near the equator. I think the massive chem-spraying is why we are colder and is to bring just that weather (Ice Age).
Uh-oh.... Now you done did it.
Hope you enjoy your 'welcome' to Free Republic.