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Huddler Bobkart developed a formula for computing the total (tangible) cost of ownership of light bulbs that takes into account the initial cost of the bulb, its energy consumption, its light output, its lifetime length, and the cost of electricity

cfl incandescent led lighting led light bulbs

If a CFL bulb lasts for longer than 50hrs, then the total life cycle energy consumption of the CFL will be lower than that of an incandescent bulb even though they are more complicated to make.

cfl compact fluorescent lightbulbs incandescent light bulbs greenmonktv

It's the final push to bring our 1920s house into a modern, low-carbon age – this week, we focus on the last few touches - appliances and rare light bulbs

green home good energy appliances light bulbs LED greenmonktv

Obama is sick and tired of having to save the planet by switching to energy-efficient bulbs. During the primaries, Newsweek overheard a very unscripted Obama talking about the debates:

I don't consider this to be a good format for me, which makes me more cautious. I often find myself trapped by the questions and thinking to myself, 'You know, this is a stupid question, but let me … answer it.' So when Brian Williams is asking me about what's a personal thing that you've done [that's green], and I say, you know, 'Well, I planted a bunch of trees.' And he says, 'I'm talking about personal.' What I'm thinking in my head is, 'Well, the truth is, Brian, we can't solve global warming because I f---ing changed light bulbs in my house. It's because of something collective'.

obama light bulbs