It can be hard to think about the extent of our energy consumption in real terms. When rinsing out and saving that 6 pint milk carton for the recycling, how can one know what difference was made?
During the great depression of 1932 planned obsolescence found its champion; Bernard London published
Have you ever bought a new phone, only to find the newest version announced a week later? It can be difficult to decide the best time to upgrade, when you know that a technology is always improving.