If our car drives 20 miles on one gallon of gas (this is clearly not a very efficient car!), the car burns kg per gallon x 1 gallon per 20 miles, or kg of carbon per mile. This is equivalent to x 44 divided by 12 = kg per mile, or pounds (~1) pound of carbon dioxide per mile. Or, in metric units, kg per kilometer. grams CO2 per square meter taken from the atmosphere on average (Meaning that square meters of land would cancel out the effect of our human) – but remember – this in only during the growing season! A generic tree (reference 5) This tree (I’m assuming this is a big one) is said to take up kilograms of carbon dioxide a year.
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CO2 race cars are far more than toys -- they're a case study in multi-discipline engineering. In fact, many high-level universities' engineering programs have annual competitions to see who can build a CO2 race car the fastest. Since most CO2 cars in a given class weigh about the same and have the same amount of thrust, making the body as sleek as possible can give you a real edge over the competition on race day. Some of these aero tricks can be applied to an existing car .