Comments by "geemy" (@geemy9675) on "Why It Was Almost Impossible to Make the Blue LED" video.

  1. lighting accounts for 5% carbon emissions. home heating 20% I guess cutting most of those 5% will increase home heating by a significant portion of those 5% ? depending on your electricity mix heating with bulbs could be generate less emissions than burning fossil fuels for heating I don't think transitioning to led should slow down but maybe it should be redirected to countries which don't require heating or with clean electricity speaking about heating, considering how sun makesyou feel much warmer, is it possible to have colder air in your house and infrared beams targeted at you? could be done roughly by detecting human presence in a room or more precisely with tracking system and something similar to matrix headlights
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