We recently posted on some of the common misconceptions people have about CFLs. Since then, two other noteworthy myths have been sent my way that I wanted to address. Hopefully some former skeptics will now trade out their incandescent bulbs for CFLs!

Myth: CFLs will actually harm the environment because they use so much energy to make and ship.
Truth: The amount of energy required to manufacture, transport, and dispose of a CFL is about 4% of the bulb’s total energy use. Scientists found that it takes about 1-2kWh of energy to make and ship a CFL (even from China). However each CFL save at least 200kWh of energy over its lifetime.

Myth: Finding a recycler is hard.
Truth: You shouldn’t throw used CFLs out with the trash. Check with your local waste management agency or visit earth911.org for disposal options. Also, many large retailers such as IKEA and Home Depot will accept used CFLs.

You may know people who are hesitant to switch to those new swirly light bulbs.  Why?  In most circumstances, it’s simply a case of misperceptions and outdated reasons.

Myth: CFLs produce a harsh blue light.
Truth: CFLs nowadays are engineered specifically for consumers expecting “soft white” light that mimics natural sunlight and the warm light of incandescent bulbs.  CFLs with a value of 2,700 to 3,000 Kelvin (K) have a warmer, yellower color; higher K values will emit a bluer or whiter light.  Energy Star rated CFLs will have their Kelvin value listed on the packaging.

Myth: CFLs flicker when they first light.
Truth: That happened in earlier CFLs with magnetic ballasts. New ones use electronic ballasts, which do not flicker.

Myth: CFLs need time to turn on.
Truth: Turn-on is now nearly instant. But most CFLs tested took about 30 seconds to reach 80 percent of their brightness.

Myth: CFLs can’t be dimmed or used in 3-way fixtures.
Truth: Early CFLs did not have dimming capabilities. The technology has evolved, however, to suit a number a lighting needs.  Look carefully at the packaging for those made specifically to work with dimmers or 3-way fixtures.

Myth: CFLs are expensive and won’t save money.
Truth: While CFLs cost more than incandescent bulbs to purchase, their energy efficiency and longevity make up for the cost differential. A CFL uses about 75% less energy than a standard incandescent and can last up to 10 times longer, saving about $30 over the course of its lifetime.

Myth: CFLs are a major safety hazard because they contain mercury.
Truth: Yes, CFLs contain tiny amounts of mercury; however they are not a major safety hazard.  If you break a CFL, use common sense to clean (open windows, clean up, and remove the debris).  Your exposure to mercury will be minimal – the equivalent of taking a tiny nibble of tuna, according to a staff scientist at Berkeley Lab

The U.S. Environmental Protection Agency (EPA) has established a new reporting system that will require the largest emitters of greenhouse gasses (GHGs) to track their emissions beginning January 1, 2010.  These organizations will then be required to report their findings to the government annually, with public disclosure due in the first quarter of 2011.

Reporting will be mandatory for approximately 10,000 of the nation’s biggest emitters, which account for about 85% of total US GHG emissions.  Power plants, vehicle and engine manufacturers, and industrial facilities emitting 25,000 metric tons or more of GHGs will be required to comply with the EPA regulation.  The cutoff is equivalent to approximately the annual GHG emissions from 4,600 passenger vehicles.

The graph to the right represents the breakdown of emissions by industry, coinciding with the organization types required to report their emissions.

The EPA has said the new reporting system will provide a better understanding of where GHGs are coming from and will guide development of the best possible policies and programs to reduce emissions.  It will also be the necessary foundation for federal policy to reduce pollution resulting in global warming.

This can only be considered a good development.  Many of the 10,000 largest emitters are already required to report other types of emissions to the EPA; the addition of GHG tracking will not “rock the boat” too significantly.  While other companies may grumble about the extra cost to implement a new process to collect and report data on their emissions, the future will hold some form of carbon tracking – whether in the form of cap and trade or taxation – by which they will be required to abide.  The EPA’s rule will give the largest emitters an opportunity to take inventory now, compare their output to similar organizations, and determine ways to reduce their consumption – putting them in a better financial position for the day that GHG emissions are a central component of any company’s viability.