Light energy saver

Finally, a sensible law has been passed. The phasing out of standard light bulbs and introduction of the low energy light bulb throughout all homes in the United Kingdom has to be the way forward for reducing carbon emissions. We changed all of our indoor lights a while back after managing to find some smaller versions that didn't poke out of the ends of the light shades. What proved an interesting observation was that the temperature in our rooms also decreased after changing to the new bulbs. In our lounge the temperature dropped by two whole degrees. The new light bulbs are long life and should last around seven years. They are also slowly coming down in price. Will the rest of the world follow suit and change to low energy bulbs, I wonder?