So this must be why you IMed me yesterday.
|
Originally Posted by GRUN-1
You're speaking like things like Carbon composites and Carbon Nanotubes don't exist. There are plenty of materials that don't involve petroleum based production methods. In fact, there's are fields of science and engineering devoted to this: Materials Science and Materials Engineering.
|
Just as a side note, carbon fiber reinforced polymers are considered roughly 4-5x more environmentally harmful than steel, twice as harmful as virgin aluminum (many more times if the aluminum is recycled), and anywhere from 2-10x more harmful than most common polymers (plastics, rubbers, and lots of other synthetics). CFRP also has one of the highest emission rates of CO2 per ton of any material out there, I believe.
But yeah, us MSE people are working on less costly/ecologically friendly methods of producing things, though it's usually pretty hard since you just have to replace one bad thing with something that (currently) is believed to be slightly less bad.
Edit: Rab, could you also explain what
http://upload.wikimedia.org/wikipedi...ure_Record.png means? I'm not too up on my climatology, so what does "Temperature Anomoly" mean in the graph's context?
Jam it back in, in the dark.
85242
35212
RacinReaver