by Bonnie Hulkower, treehugger, USA - One of the biggest challenges in transforming the world towards a low carbon economy is the vested interests of some corporate players. You only have to look at the humble light bulb. The old, massively energy inefficient bulb dates back almost two centuries. Suddenly, the compact fluorescent bulb is all the rage, and suddenly large corporations are switching production to the energy saving ones—it is about taking the lids off the eyes and catalyzing momentum.