Posts Tagged ‘green house gases’

What is the best kind of energy to reduce green house gases?

What is the best kind of energy to reduce green house gases? And why would it be considered sustainable.

What is more environment friendly -driving an old gas guzzler out or traing it in for a hybrid?

I have a van that gives 18 mpg. It has 170,000 miles on it. The wear shows but it is doing fine otherwise and all othersystems work. I have owned it for 8 years.
My next car will definitely be a Hybrid that gives more than 35 mpg.
My dilemma is:
I could trade this one now and start emmiting less green house gases.
or
I can drive the one I have for another 40-50k miles; thus delaying a cars worth of hard ware and mterial consumption for another 4-5 years.
So the question is: What is more environment friendly – Trading in old gas-guzzlers early for Hybrids or running them out for thier full life? Becaue after I trade this one in now, someone else will buy it and drive it for another 50,000 miles anyway, right?
What is worse: gas fumes of 300 gallons or Meterial for a brand new car?