"On average for every 1kWh of energy produced by a coal power station, 1kg (2.2pound) of CO2 is produced. Burning natural gas for electricity production or water heating produces about 450grams of CO2 for every kWh of energy produced." - Factoid
"Americans use 50 million tons of paper annually, consuming more than 850 million trees."
SunCalc shows sun movement and sunlight phases during the given day at the given location.