Irish stepdance many this was a betrayal of tradition, but to some it was a way of expanding Irish culture and became widely accepted. Following after Riverdance was Lord of the Dance and many other theatrical productions based on Irish stepdance. Michael Flatley, an Irish stepdancer, became a well known name within these shows. Two types of shoes are worn in Irish stepdance; hard shoes, which make sounds similar to tap shoes, and soft shoes (called Ghillies), which are similar to ballet slippers. The dances for soft shoe and hard shoe are generally different and go by different names. Different music with
Solar activity and climate irradiation increases with part of twentieth century warming. Three mechanisms are proposed by which solar activity affects climate: Climate models have been unable to reproduce the rapid warming observed in recent decades when they only consider variations in total solar irradiance and volcanic activity. Hegerl "et al." (2007) concluded that greenhouse gas forcing had "very likely" caused most of the observed global warming since the mid-20th century. In making this conclusion, they allowed for the possibility that climate models had been underestimating the effect of solar forcing. Another line of evidence comes from looking at how temperatures at different levels