try to use LED-based lighting for all your lights. I know its kinda expensive but the initial cost will pay for itself in the long run since LEDs are incredibly durable. They are also very energy efficient so you wont be using as much power for your lights.
How about these websites:
Just copy and paste the URL on your browser. There...
LEDs are powered with solar PV power augmented with grid electricity, even bigger savings can be gained by using DC, according to the research.
And as the cost of LEDs decrease, the savings from transitioning to an LED-DC combination will improve, according to CMU researchers. By 2015...
Urban air pollution is set to become the biggest environmental cause of premature death in the coming decades, overtaking even such mass killers as poor sanitation and a lack of clean drinking water, according to a new report. guardian.co.uk/environment/2012/mar/15/air-pollution-biggest-killer-water