yep it has.
Stupid theory-If polar bear starts work out, then energy might became source of heat and ice might start to melt, but its need to be hot polar bear.
normal theory- in 1912 sun activity wasn't so active like these days. 2012 is apocalipse years, right?so sun will became warmer and warmer, ozone layer will probably dissapear and that will couse iceberg to melt.
Stupid theory-If polar bear starts work out, then energy might became source of heat and ice might start to melt, but its need to be hot polar bear.
normal theory- in 1912 sun activity wasn't so active like these days. 2012 is apocalipse years, right?so sun will became warmer and warmer, ozone layer will probably dissapear and that will couse iceberg to melt.