Solar reflectance of paved surfaces can be a strong contributor to pavement warming and this warming has the potential to impact the UHIE in those built environments that experience hot weather and are large enough to generate a heat island.

How much does pavement contribute to global warming?

When hit with solar radiation, researchers found that road asphalt releases up to 300% more emissions. “That's important from the perspective of air quality, especially in hot, sunny summertime conditions,” said Peeyush Khare, a researcher at Yale University and another author of the research.

How does paving roads and parking lots affect the environment?

They Pollute water. Road and parking lot projects usually require elaborate drainage networks to remove rainwater from the surfaces and prevent flooding. Flowing over pavement exposes water to pollutants surface debris and asphalt.