• HubertManne@moist.catsweat.com
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      3 months ago

      if this yahoo from the internet I found in a search is right then its both:

      “Glass will bock low frequency IR (red hot), but allow the passage of high frequency (white hot) IR. Hence, the heat of the sun will easily pass into a greenhouse, but once this energy is converted into low frequency heat by the objects within that absorb it, then the resulting low frequency heat is trapped. Hence, the Greenhouse Effect.”