Albedo -

Here is where the concept becomes urgent. Albedo is not a static number; it changes, and those changes create feedback loops that can accelerate or decelerate global warming.

Cities are "heat islands" because asphalt and dark roofing tiles have low albedo. Cities can be 1–3°C hotter than surrounding rural areas. To combat this, cities like Los Angeles and Tokyo are mandating "cool roofs" painted white or coated with reflective elastomeric materials. Studies show that raising a roof's albedo from 0.20 to 0.70 can reduce peak cooling demand by 10–20%. Albedo

Albedo is measured on a scale from 0 to 1 (or 0% to 100%). Here is where the concept becomes urgent

A surface with an albedo of would be a perfect reflector, bouncing back all incoming light, while an albedo of 0 would represent a perfectly black surface that absorbs all radiation. In nature, surfaces fall between these extremes: Cities can be 1–3°C hotter than surrounding rural areas