Minecraft wiki entry for ModJam, associated text: Fimbulwinter (by javisel, MotorGorilla1, cipher_zero_x)
Ice Sculptures (by hnOsmium0001)
Polarizing Biomes (by bl4ckscor3)
Snow Under Trees (by bl4ckscor3)
Snow Variants (by Trikzon)
Snow! Real Magic! (by Snownee_)
Snowmancy (by bl4ckscor3)
Spruce Willis the Xmas Tree (by ProxyNeko, Coda1552, and jriwanek)
Thicker Snow on Grass (by tfarecnim)
Winter Ambiance (by Willbl3pic)
Winter Decorations (by Willbl3pic)