Google today (Nov. 18 local time) released a tool that helps city dwellers stay cool by mapping out where trees are most needed. Cities tend to be warmer than the surrounding areas because buildings and asphalt absorb heat. One simple way to cool the city is to plant more trees in sparsely populated communities. < / P > < p > Google’s new tree canopy lab uses aerial images and Google’s AI to calculate the location of each tree in the city. The lab put this information on an interactive map along with other data that shows which communities are more densely populated and more vulnerable to heat. It is hoped that planting new trees in these areas will help cities adapt to global warming and save lives in the event of heat waves. < p > < p > Google conducted a tree canopy experiment in Los Angeles. Hundreds of cities are still publishing data, the company said. In the future, city planners who are interested in using the tool can also contact Google through Google’s announcement. “We’re going to really understand where the best strategic investment is in terms of addressing urban heat,” said Rachel malarich, Los Angeles’s first urban forest official < / P > < p > Google claims that their new tools can save cities like Los Angeles when they start counting trees. This is usually done by sending people to investigate each block. According to mararich, lidar technology has also been used in Los Angeles to map urban forests in the past – but the process is expensive and slow. However, Google’s new service is free to use and will be updated regularly. < / P > < p > the tree canopy laboratory found that more than half of Los Angeles residents live in areas where trees shade less than 10% of the community area. The survey also found that 44 percent of Los Angeles people live in areas with a high risk of extreme heat. Over the past 50 years, heat waves in Los Angeles County have become longer, more frequent, and more intense, according to a study released this year by researchers at NASA’s Jet Propulsion Laboratory. < / P > < p > extreme high temperature is one of the most proven impacts of climate change, causing more deaths in the United States each year than any other weather related disaster. Due to the so-called urban heat island effect, hot temperatures may be more dangerous in cities. Urban areas have more endothermic surfaces and fewer green plants, where the average temperature is 6 degrees Fahrenheit higher than in rural areas. Night is a critical time for people to recover from the heat of the day. < / P > < p > trees can cool hot communities in many ways. They shade people and buildings. When the temperature rises, they release water by evaporating – a process similar to our body cooling through perspiration. According to the EPA, these two mechanisms can reduce summer maximum temperatures by 9 degrees Fahrenheit. < / P > < p > Google’s tree canopy lab shows that in Los Angeles, communities with the highest risk of hot air tend to be more densely populated, but less densely covered with trees. Basically, the places most vulnerable to heatstroke and death have fewer resources to deal with them. < p > < p > in American history, systematic racism pushed people of color to urban hot spots. The “red line” community is the result of policies in the 1930s that prohibited people of color from obtaining housing loans and insurance. Today, these communities are among the most popular in their cities. < / P > < p > right now, the city of Los Angeles is trying to make some communities green, and it’s preparing for a warmer world. By 2028, the city hopes to increase crown coverage to 50% in low-income, severely heat affected communities. In addition, the government has set a target of planting 90000 trees in the city by 2021. It is believed that this should bring an additional 61 million square feet of shade to the city. The release and download schedule of Microsoft Flight Simulation varies from region to region