Description:A doctor is saying that the world is facing a helium shortage and party balloons are among the reasons. When was the last time you worried about the shortage of helium?Well Doctor Peter Wothers, a University of Cambridge chemist and a fellow of the Royal Society of Chemistry, is planning to use this year’s Royal Institution Christmas lectures to bring awareness to the importance of helium. Holiday parties often contain balloons and some people release them into the sky as a form of tradition.(1:13)