Using more light and not saving energy? This is not news.
Astronomers have known this for years. People waste light and energy like they waste water, gas, and food.
People sound all proud and smug when they talk about consuming less by switching to energy-efficient systems, but anyone with half a brain can evaluate those claims, and poke holes in them.
It's important for people to be vigilant in energy savings. It's not just about switching to a new light source.
When my wife and I switched to CFL's all those years ago, we did our best to not increase the number of lights we own, except where it made sense (eg: where a single lamp could replace one or more brighter lamps located further away from the intended use).
We turn lights off when we leave a room. We use less lighting today than we did 10 years ago.
We hardly ever turn on our outdoor lighting - it's wasteful and hardly ever required, especially with all the bright street lights that you can read by! It also affects people's enjoyment of the night sky by blocking out the stars and deep-sky objects, a growing problem I'm not prepared to contribute to.
We have realized an energy saving due to our vigilance.
One thing I notice is people love to leave their outdoor lights on at night, whether they are home or not.
I notice that my neighbours leave their outdoor lights on during the daytime, where lighting is not needed - even when they are home.
I'm glad to see LED lighting invading all aspects of our lives. They have definitely improved my life, with LED blacklit TV's, powerful flashlights that sip power from batteries, toys, and more.
If we aren't careful, we are going to create more problems for ourselves because of it. The article is right, people will produce more lighting when cheaper and more energy efficient lighting comes available, and will become more wasteful. This mindset has to be changed.
So how to drive the point home about wasteful lighting?
Electricity will have to quadruple in price before people will smarten up, and even then, once a power pig, always a power pig.