Known as the “doomsday glacier”, the Antarctic Thwaites glacier is melting at an alarming rate, raising sea level, which is worrying and confusing. British and American scientists recently announced that they have found the answer to this question. Scientists say the main culprit for the rapid melting of glaciers is the warm current between the bottom of the glacier and the bedrock, with the water temperature of 2 degrees Celsius. Moreover, with the help of the latest survey instruments, scientists have mapped the path of warm currents under the ice. < p > < p > various detection data show that the bottom of the front end of the siweitz glacier is suspended, and the Ocean warm current is inserted between the continental shelf and the glacier bottom by a huge channel; the larger the ice surface exposed in the water, the more melting, and the greater the inflow of warm current, thus forming a vicious circle. < / P > < p > if the Switz glacier continues to melt at the present rate, the ultimate collapse of the ice shelf will be inevitable, and the earth’s ocean and atmospheric circulation system will be seriously distorted, with worrying consequences. Schweitz glacier is one of the two largest and fastest moving glaciers in Antarctica (the other is Songdao glacier). It is located in the western part of Antarctica, with a thickness of 4 km and an area of over 180000 km2, which is slightly smaller than that of the United Kingdom and the size of Florida in the United States. The schweitz glacier is considered to be the key to predict global sea level rise. The data show that it has enough ice to raise sea level by 65 cm, and it melts into the Amundsen Sea, accounting for about 4% of the global sea-level rise. NASA announced early last year that it had discovered a huge cave at the bottom of the siweitz glacier with the latest satellite radar detection technology, which is 300 meters high and covers an area of 40 square kilometers, and can hold 14 billion tons of ice. The data show that a large part of the cave was formed within three years. < p > < p > the British Antarctic Survey (BAS) used unmanned submarines to survey the flow at the bottom of the glacier. The results showed that not only the turbulence formed by the mixing of salty and fresh water was detected, but also the “warm water” temperature was more than 2 ℃ higher than the freezing point. < / P > < p > the results of NASA and bas have confirmed the scientific community’s suspicion for many years that the front end of the schweitz glacier is not close to the bedrock of the continental shelf, so the warm current can be embedded between the ice layer and the sea bed like a shuttle; the larger the section, the faster the glacier melts. < p > < p > satellite data show that since the 1970s, the sewitz glacier has shrunk significantly. From 1992 to 2017, the glacier ground wire retreated at a speed of 0.6 to 0.8 km per year. Its collapse will raise global sea level by about 65 cm and release other major ice bodies in western Antarctica, which together could raise sea level by 2-3 meters. Professor David Vaughan, head of the British Antarctic Survey and science department, said that if the sea level rose by 50 cm, the once-in-a-millennium storm might become more frequent and become a once-in-a-century storm; if it rose by one meter, it might happen every 10 years. However, it is undeniable that the increasing carbon dioxide emissions make more heat into the atmosphere and ocean, which means that the energy in the earth’s ecosystem increases, which will inevitably lead to changes in the global big cycle. The west of Antarctica is the place with the most frequent storms on the Antarctic continent. However, the glacier stability here is not as stable as that in the East, which is more affected by climate and ocean currents. < p > < p > the key is that the warm Atlantic current with higher water temperature comes to Antarctica from the Gulf of Mexico, and unconsciously washes the bottom of the glacier and the front edge of the suspension, making the ice melt from the bottom. < / P > < p > the warm current from the Gulf of Mexico is heavier because of its salt content, so it sinks below, enters the south pole with the deep Atlantic ocean current, and joins the ocean current surrounding the Antarctic continent. The surface water temperature in Antarctica is slightly higher than the freezing point (- 2 ℃) of saline water, but the temperature of ocean current from the Gulf of Mexico is higher than the freezing point, about 1 ℃ to 2 ℃, and it is located about 530 meters underwater. The upper cold and the lower warm ocean currents continue to erode the edge of the glacier and scour the bottom of the glacier along the channel between the glacier and the seabed rock. < p > < p > due to climate change, the earth is warming, and the ocean water temperature is rising. The rising temperature of the Pacific Ocean changes the wind direction along the west coast of the Antarctic continent, and promotes the warm current in the deep ocean more turbulent. Spontaneous combustion at a Guangzhou Motor vehicle intersection and other traffic lights in Shenzhen