What can teenagers do for the environment?
What are some programs that my friends and I could get involved in, or some things that we could do for the environment? Is there a Yahoo group for this?
Is it better for the environment to use paper towel or a hand dryer in a public washroom?
Nikita (Australian) asked:
In a public toilet/bathroom there is often a hand dryer (electrical) and recycled paper towelling. Which is better for the environment and what evidence is there to support this?
I would rather this didn’t turn into a discussion about not using either – sometimes this is not an option. Thanks.
What would happen to the environment if hydrogen became a fule source?
Right now the water cycle is a closed system. If hydrogen became a fuel source, how would that throw off the ecological balance of water in the environment?
Even if we recover hydrogen from water, is it a closed system or does it have leaks.
Question posted courtesy of: Caffeinated Content for WordPress
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?
Question posted courtesy of: Caffeinated Content for WordPress
How to calculate energy consumption of a refrigeration unit of a truck?
To determine the fuel consumption of a refrigerated truck…
E.g. the energy required for a refrigerated unit to cool 25 m3 of space, how will the energy consumed reflect on the fuel consumption of the engine of the truck? And by cooling 12.5m3, half of the full volume, how do I determine the cut-down on energy consumption of the refrigeration unit?
Question posted courtesy of: Caffeinated Content for WordPress
