Why are these bulbs considered to be a “green” option if they contain mercury?

• Compact fluorescent lights (CFLs) use 75% less energy and last 10 times longer than incandescent bulbs, reducing your electricity bill. Lighting can account for up to 10% of the energy used in a home and every bit helps!
• CFLs and fluorescent tubes benefit the environment by reducing solid waste since they last longer than incandescent bulbs and can now be recycled.
• CFLs help to achieve the BC Energy Plan goal of meeting 50% of new energy needs through energy efficiency and conservation in the province.