{
  "id": 3472587,
  "title": "New pigment-free coating stays 6°C cooler than surrounding air in desert sun",
  "url": "https://urgent.news/2026/08/26/new-pigment-free-coating-stays-6-c-cooler-than-surrounding-air-in",
  "topic": "culture",
  "section": "Culture",
  "published": "2026-08-26T08:30:00.000Z",
  "source": {
    "name": "Times of India",
    "slug": "times-of-india",
    "url": "https://timesofindia.indiatimes.com/science/columbia-engineers-built-a-pigment-free-polymer-coating-filled-with-microscopic-air-pores-under-arizona-desert-sun-the-coated-surface-stayed-about-6c-below-ambient-air/articleshow/133532403.cms"
  },
  "original_language": "en",
  "account": null,
  "summary": "Columbia Engineering researchers developed a porous polymer coating that can cool surfaces below the surrounding air temperature without using electricity. The coating replaces conventional white pigments with nano-to-microscale air voids that reflect sunlight and release heat towards the sky. Tests showed the surface stayed about 6°C below ambient temperature in Arizona and 3°C below it in…",
  "key_points": [],
  "editors_take": null,
  "illustration": null,
  "coverage": {
    "outlets": 1,
    "also_reported_by": []
  },
  "ai_generated": true,
  "disclaimer": "Summaries, key points and the editor’s take are written by software from other outlets’ reporting and may contain errors — always check the linked original."
}