On February 20, 2007, Australia announced that it would phase out the sale of the incandescent light bulbs (that we use nowadays) by 2010 and replace them with CFL (compact fluorescent light) bulbs.
Two months after Australia's announcement, the Canadian government announced that it too would phase out sales of incandescents by 2012.
On December 19, 2007, USA also announced that it will phase out incandescent bulbs by 2014.
In fact, President Bush signed an energy bill that will make the production or sale of the incandescent bulbs illegal after the phase-out period, which means people will be forced to buy the CFLs whether they like it or not.
The European Union announced in March 2007 that it plans to cut carbon emissions by 20 percent by 2020. Part of this cut will be achieved by replacing incandescent bulbs with compact fluorescents. Over the next 10 years, China, which makes 70 percent of the world's light bulbs, has agreed to phase out incandescent bulbs in favor of CFLs (www.myproductalert.com/cfl-compact-fluorescent-light.html)