Asphalt seems to be partly at fault for global warming. Is walking on a noonday in July asphalt street in Phoenix any less challenging that walking over hot coals in Honolulu? Asphalt streets absorb sunshine; a huge amount of it to release the heat during the day and the night creating micro-climates and global warming synergy. It would be good to make roads white to increase reflectivity and the national albedo, yet better to make it white and solar voltaic or electron capturing to produce electricity for electric cars.
People usually really don’t understand how many square miles of asphalt exist in the nation or the total capture of extra solar heat in comparison to natural earth and plants on the same places.
The June 2018 temperature average was the third highest in U.S. history a bit more than 3 degrees above average. https://www.ncei.noaa.gov/news/national-climate-201806
If one considers just Arizona’s addition to national average temperature with asphalt roads, parking lots and fossil fuel exhaust going up into the atmosphere and wind flowing east to warm up the already warm Gulf Coast with its already warmed Gulf of Mexico waters its easy to understand the 3 degree higher temperature.
There are, according to the national asphalt association, more than 2.7 million miles of asphalt roads in the U.S.A. In fact 94% of roads are paved with asphalt. That is a good way to heat up the night.