Andalusia, the largest autonomous region in southern Spain, is famous for its white mountain city. All the buildings in the mountain city are painted white because the white color can reflect the heat of sunlight, thus keeping the interior cool. Can this Mediterranean "cooling secret" be used to solve the problem of global warming? More and more scientists are confident that this idea has certain feasibility. The reason is that the city roofs and roads are covered with light-colored paint or materials to reflect the sun's rays without absorbing heat. A new study by researchers at Lawrence Berkeley National Laboratory in California, USA, shows that "light reflection" on roofs and roads can offset a large amount of greenhouse gases. In addition to reducing air-conditioning power consumption, this move can also buy time and wait for cleaner energy. In this regard, the US "Los Angeles Times" reported that: Globally, the roof area accounts for 25% of the total area of most cities; the road area accounts for about 35%. If 100 major cities replace the roofs and road surfaces with reflective materials, it will be able to offset 44 billion tons of greenhouse gases. These greenhouse gases trap heat in the atmosphere and change the climate. At present, global climate negotiators are focusing on issues such as "limiting fast-growing greenhouse gas emissions". If the "cool roofs and roads" plan is implemented, countries do not even need to do too much on reducing industrial pollution. . Lawrence Berkeley National Laboratory researcher Dr. Hashim Akbari, has been engaged in the research of "urban heat island effect" (a phenomenon where the temperature in urban areas is significantly higher than that in suburbs) for many years. According to his calculations, based on the current price of "carbon trading", the value of "cool roofs and roads" amounts to 1.1 trillion US dollars. He hopes to call on the United Nations to take relevant measures. But, like most grand plans, the "Cool Roofs and Roads" plan will always face various difficulties in its implementation. In many places, regional regional environmental protection regulations have strict regulations on architectural styles including roof colors. Since 2005, the "Interim Provisions for Building Standards" implemented by California, the United States, requires the roofs of commercial buildings to be painted white. Currently, this requirement has been extended to the roofs of other buildings. Although California's environmental protection boom is high, it has its limitations-California cannot turn all "black roads" into "white roads" overnight. If a city as large as Los Angeles can “completely whiten” the roof and pavement, then the plan proposed by former US Vice President Al Gore to “transform the United States into a country that fully utilizes renewable energy within 10 years” will surely save money, More feasible. Author :( Copyright without permission, shall not be reproduced)
Andalusia, the largest autonomous region in southern Spain, is famous for its white mountain city. All the buildings in the mountain city are painted white because the white color can reflect the heat of sunlight, thus keeping the interior cool.
Can this Mediterranean "cooling secret" be used to solve the problem of global warming? More and more scientists are confident that this idea has certain feasibility. The reason is that the city roofs and roads are covered with light-colored paint or materials to reflect the sun's rays without absorbing heat.
A new study by researchers at Lawrence Berkeley National Laboratory in California, USA, shows that "light reflection" on roofs and roads can offset a large amount of greenhouse gases. In addition to reducing air-conditioning power consumption, this move can also buy time and wait for cleaner energy.
In this regard, the US "Los Angeles Times" reported that: Globally, the roof area accounts for 25% of the total area of most cities; the road area accounts for about 35%. If 100 major cities replace the roofs and road surfaces with reflective materials, it will be able to offset 44 billion tons of greenhouse gases. These greenhouse gases trap heat in the atmosphere and change the climate. At present, global climate negotiators are focusing on issues such as "limiting fast-growing greenhouse gas emissions". If the "cool roofs and roads" plan is implemented, countries do not even need to do too much on reducing industrial pollution. .
Lawrence Berkeley National Laboratory researcher Dr. Hashim Akbari, has been engaged in the research of "urban heat island effect" (a phenomenon where the temperature in urban areas is significantly higher than that in suburbs) for many years. According to his calculations, based on the current price of "carbon trading", the value of "cool roofs and roads" amounts to 1.1 trillion US dollars. He hopes to call on the United Nations to take relevant measures.
But, like most grand plans, the "Cool Roofs and Roads" plan will always face various difficulties in its implementation. In many places, regional regional environmental protection regulations have strict regulations on architectural styles including roof colors. Since 2005, the "Interim Provisions for Building Standards" implemented by California, the United States, requires the roofs of commercial buildings to be painted white. Currently, this requirement has been extended to the roofs of other buildings.
Although California's environmental protection boom is high, it has its limitations-California cannot turn all "black roads" into "white roads" overnight. If a city as large as Los Angeles can “completely whiten” the roof and pavement, then the plan proposed by former US Vice President Al Gore to “transform the United States into a country that fully utilizes renewable energy within 10 years” will surely save money, More feasible.
Author :( Copyright without permission, shall not be reproduced)