At sunny noon, measure the temperature outside and in the shade respectively. Is there a big temperature difference between the two places?

Because transpiration makes plants have the function of absorbing and reflecting sunlight, it is beneficial to improve local microclimate. According to the survey, the temperature in green areas in summer is 0.8 degrees Celsius lower than that in non-green areas. Some people even measured that when the city temperature is 35 degrees, the temperature under trees is only 22 degrees Celsius.