Reading some of the heritage sites face serious dangers, the lecture below is given by unico official, who explains some of these dangers. Before you read the lecture transcript, think about the following questions. What historic or natural sites are there in your area? What dangers do you think cultural and natural heritage sites are faced . with heritage in danger? welcome. Everybody is wonderful to be here. Before we begin, I want to ask you, have you ever been odd by natural wonders? Have you ever been fascinated by human civilization? If so, you might already understand why una was fighting to preserve sites of cultural and natural importance to mankind. I have the belief that some of you have heard about unesco heritage sites, or maybe even visited one. There are currently around one thousand and one hundred sites in more than one hundred and sixty country's worldwide. Unfortunately, they face a variety of dangers, and many of them are in urgent need of protection. Let's look at some specific issues. Heritage sites are at risk from natural forces. The long term, natural forces such as wind, water and temperature can gradually wear down heritage sites. For instance, the great parameter gesa is now several meters shorter than IT was originally natural disasters. The sudden and powerful natural forces can lead to the destruction of herded sites. In two thousand three, a terrible earthquake shook southeastern an and ruined large parts of the city of bam, an incredible unico cultural herded site, another big dangerous human activities. Words cause a great deal of damage to both cultural and natural heritage sites. Sometimes amazing ancient clay sculpture and buildings are accidentally destroyed by missile attacks during periods of violence. In some conflict areas where civil wars often breakout, fighters have even destroyed herded sites on purpose. Meanwhile, world heritage status may give rise to a series of problems. One of the problems is the flood of tourists. Millions of tourists travel to unico world heritage sites every year, so IT is only natural that the site suffer a bit of warrantee. The temples of an quin cambodia are typical examples of unique architecture. Every day, thousands of tourists climbing up the narrow stone steps are wearing down these ancient buildings, and the long term consequences could lead to a reparable destruction of the internal structure due to human population growth, the demand for production and consumption of goods increases. Widespread development puts our cultural and natural herded sites in danger. Many heritage sites are even at risk of being lost forever. Take the historic center of vienna in australia as an example. The city has been recognized as the musical capital of europe since the sixteen th century, home to the likes of mozart and betoken. IT is now on the list of world heritage in danger due to high rise construction projects in central vienna. Such dangers can have disastrous outcomes, not only for the sites themselves, but also for people. For instance, the great barrier reef of the northeast coast of australia is a natural heritage in danger. Due to high sea water temperatures caused by global warming, a large amount of coral is killed, and parts of the ref are seriously affected, which harms its frag naturally colored, as well as being home to a wide diversity of ocean species, the reef can boost tourism and fishing in the local area, providing many job opportunities. IT also helps protect the coastline against waves and floods if the reef disappears many people's lives and possibly even their homes will suffer greatly. Heritage age protection is at the top of the agenda for the benefit of all mankind. The more we acknowledged the outstanding universal value of our herded sites, the more likely we are to treat them with respect. These sites are the great wonders of our world and tell the story of human civilization. We all share a joint responsibility to protect and preserve them, not just for ourselves, but for future generations. If your heart breaks like mine at the thought of our irreplaceable heritage being lost forever, please take action. If you're interested, please look at our website and participate in any way you can. Thank you.