Antarctic ozone hole to date there have been only.

World Scientific reports [tech.] News: April 20 10:00-10:45 am, Department of Atmospheric Environment and Deputy Director of Polar Research Fellow defend Zou, Chinese Academy of Meteorological Sciences Academic Committee, Polar Meteorology Research Office Renlu Long Hua guest .Sina on the impact of ozone change on human polar climate change on human impact and friends concerned about the environmental issues of climate to communicate with friends. .<P> Wonderful view Abstract: </ P> <P> · Long Hua Lu: Some people say there are Antarctic ozone hole, Arctic ozone hole is also the Tibetan Plateau has the ozone hole, there are three global ozone hole. .Actually it is like, so far only appeared in the ozone hole over Antarctica, in general, lower than the ozone is 200 Dobson units, or 220, is lower than the ozone hole appeared later, the hole is only in the Antarctic .spring appear, there is no other season, do not think there is always the Antarctic, not the case. .</ P> <P> · Long Hua Lu: 1 July 2007, China's first step out of the phase-out of halon and freon, followed by a long way to go. .Let the developing countries than the original provisions of the 2010 phase-out of two and a half ahead of time. .After this incident to not burden back on the light, not light, there are a lot of things. .</ P> <P> · Zou defend: to reduce the ozone layer can now say that all is artificial, and now can not say that climate warming caused by all human beings, but the reduction of the ozone layer is definitely caused by humans. .</ P> <P> · Zou defend: the ozone layer is actually the umbrella of the land above the development of life, there is no ozone layer, which we will return to the sea, or drill holes dug to continue. .If so harsh, we still have to for future generations, but also to us today not had skin cancer, do not have cataracts, the weather was not too unusual, climate change Do not be too fierce, so we need to do something about it. .</ P> <P> following chat Record: </ P> <P> Moderator John Liu: Good morning friends you Sina! .Welcome to Sina chat room guests, today we have invited guests from the Department of Atmospheric Environment and Polar Research Fellow and Deputy Director Zou defend the Academic Committee of the Chinese Academy of Meteorological Sciences, member of Polar Meteorology Research Office Renlu Long Hua teacher. .</ P> <P> Zou defense: you friends, very happy and everyone in this chat, do I think science is the responsibility of our scientists, but also very pleased to meet you. .</ P> <P> Long Hua Lu: netizens Hello everybody! .2007 is the fourth International Polar Year, the year began, the same year, March 23 World Meteorological Day theme is Polar Meteorology, understanding or awareness of global impact. .So, now Polar has been more widespread attention of everyone, am very pleased to have the opportunity to chat with you about some of the things with the polar regions. .</ P> <P> Moderator: Thank you two teachers, and today we will, and the two major changes to the ozone layer on humans, there is the polar climate of environmental change on humans, and some people are concerned about climate .environmental issues, and users to communicate, users are welcome to actively question. .</ P> <P> first of two teachers to talk about your environment for the polar climate of a general impression. .</ P> <P> Zou defense: If the polar impression, I think it is the cleanest on earth a place, by far the least affected by human activity areas. .So, in particular the snow-covered, giving you the feeling is very clean. .I think if that first impression, this is my first impression to these places. .</ P> <P> Long Hua Lu: I have already talked to defend Zou, I think so, because we all know now the whole earth is the same as a whole, it is atmosphere, atmosphere, hydrosphere is ocean, land, .snow and ice, biological, composed of at least five big circle of global climate system. .And the Tibetan Plateau is the polar climate system in this very important inside the unit. .So there we are very concerned about in this polar region, this is a great relationship. .</ P> <P> Moderator: would like to ask the two to talk about, because the climate impact of the global atmospheric system is very large, the atmosphere in the global climate system, specifically some of the impact of environmental performance on? .</ P> <P> Zou defend: the place atmosphere system must first recognize it, we must first know how the drive atmosphere in the end, that is, atmospheric motion, the atmosphere is how he has been driven up, how is it in motion, and air movement .mainly solar energy, solar energy is the shine on the ground, according to the ground after the heat, turn the ground and then heated the atmosphere, we can feel the sun shine on the ground, feel the ground warm, heat up a feeling. .</ P> <P> Zou defend: the uneven distribution of the ground if, for example, of the ocean, a land, so the difference caused by heat, we have in the past may be secondary principle of thermal convection, where hot air to rise, .where relatively cold air to fall, so to use up the atmosphere. .There are seasonal changes in the sun, we know that the equator is where the most sun, according to the less polar, relatively cold, to form the Earth equator is hot, more cold polar areas, so this difference is the hot and cold .The Earth's atmospheric circulation of the basic driving force, I would like polar it from this perspective, the global atmospheric circulation is very important. .</ P> <P> Long Hua Lu: Polar is the world's climate has a very important role, we know that in the context of global warming, we are very concerned about this matter, why is it particularly concerned about the Antarctic and the Arctic? .I tell you two things to understand. .One is the Antarctic, the Antarctic region is a place? .Is surrounded by sea ice continent, the Antarctic continent where more than 95% is covered by ice, the place to keep snow and ice on the planet 90% of the total. .Total amount of ice as big, if that future global warming, if it melts, I have a premise that, if it melted, our impact on it greatly. .The impact of that be? .If you say Antarctic ice melt, global sea level to rise by 60 meters. .This increase of 60 meters, then place the southeast coast of China, not to talk about the Pacific island countries to all drowned. .</ P>.