Bohemians live in alternative spaces, these are places that are not normally considered suitable for living in. They don't make wealth their priority. Money is only a means of survival, so they can live for their arts/craft/music/literature...etc.
What causes ice-ages? Fluctuations in the amount of insolation (incoming solar radiation) are the most likely cause of large-scale changes in Earth's climate during the Quaternary. In other words, variations in the intensity and timing of heat from the sun are the most likely cause of the glacial/interglacial cycles.
1 Huronian-The Huronian ice age was one of the longest ice ages in the Earth's history. 2  It lasted from about 2400 to 2100 million years ago. 3  Scientists think it may have been caused by a lack of volcanic activity lowering the carbon dioxide in the atmosphere.