well, Does it?
already discussed here i guess:
Did you know if you type that same question into the following website it'd give you an answer:
Heres what I got from my search:
LCD monitors draw less than half the power a CRT monitor does for the same screen area, leading to huge power savings. Imagine if you're using dual monitors or whole arrays (at work or on display) -- the power savings can be truly enormous!
Also, the amount of heat generated by an LCD monitor is way less than a CRT monitor. This means your air conditioning system has less work to do, which translates to further savings on your bill.
The winner: LCDs.
Google is your friend people!