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.
Quick Answer. According to ScienceDaily, ice ages occur every 100,000 years. They are made up of extremely cold periods, glacials, during which thick ice sheets bury vast areas of North America, Europe and Asia, and warm periods, interglacials, when the ice melts. Continue Reading.