This new craze for “raw water” will not end well

In 1854, after at least five hundred people died of cholera in London, Dr. John Snow mapped where the victims were and determined that the source was a water pump on Broad Street.

Read more: https://www.treehugger.com/clean-water/new-craze-raw-water-will-not-end-well.html

On Stanley Jevons and LED lights

In a recent post on LED lighting, I raised the spectre of Jevons Paradox, paraphrasing Stanley by saying that “It is wholly a confusion to suppose that more efficient lighting leads to diminished consumption. The very contrary is the truth.”

Read more: https://www.treehugger.com/sustainable-product-design/stanley-jevons-and-led-lights.html