Ambient pressure concept of pressure becomes irrelevant, and it is undefined at a gravitational singularity. The SI unit of pressure is the pascal (Pa), which is a very small unit relative to atmospheric pressure on Earth, so kilopascals (kPa) are more commonly used in this context. The ambient atmospheric pressure at sea level is not constant: it varies with the weather, but averages around 100 kPa. In fields such as meteorology and underwater diving, it is common to see ambient pressure expressed in bar or millibar. One bar is 100 kPa or approximately ambient pressure at sea level. Ambient pressure may in
Pascal Lamy running and cycling. "The Relationship between WTO Law and General International Law" in the Lecture Series of the United Nations Audiovisual Library of International Law Pascal Lamy Pascal Lamy (born 8 April 1947) is a French political consultant and businessman. He was the Director-General of the World Trade Organization (WTO) until 1 September 2013. His appointment took effect on 1 September 2005 for a four-year term. In April 2009, WTO members reappointed Lamy for a second four-year term, beginning on 1 September 2009. He was then succeeded by Roberto Azevêdo. Pascal Lamy was also European Commissioner for Trade and is