foxyrider wrote:Surely if its not the same it can't be CO2 as that set of letters/numbers represents the chemical makeup of the material?
So its either CO2 or its not, it can't be a 'different type', any chemists out there?
As far as I can recall (rusty biochemistry degree knowledge lurking in seldom used brain cells - if they were books in a library you would probably have to blow the dust off

) CO2 is pretty much CO2 - there will be slight variations due to the presence of minute quantities of different isotopes (
Wikipedia explanation for those who want to know) but, as far as I know, they won't have any different chemical properties.
Penfolds11 wrote:There is also a maximum amount of CO2 that trees can absorb before they leech any excess back into the ground, rather like a sponge saturated with water.
There is a maximum amount of CO2 any given tree can use out of the air - any it can't use in photosynthesis is just left there. Just like when we breathe we don't suck all the oxygen out of the air, we only remove a few percent and breathe the rest back out. Plants don't suck CO2 into the ground, the CO2 effectively gets captured as dead plant material gets buried and into a (relatively) static state, such as peat near the surface, or coal, gas, etc. Decaying plants release methane, another "greenhouse gas" which is arguably worse than CO2. CO2 can also be dissolved in water so the oceans can hold vast quantities how much is affected by current patterns & ocean temperatures and is notoriously difficult to model. Etc., etc.
On the packaging subject it did occur to me that there is a potentially crucial difference between retail packing & OEM stuff intended for bike manufacturers to use.
- Manufacturers can reasonably be expected to know what to do with the stuff and where necessary should have been provided with crucial information, such as minimum or maximum safe torques for fastenings.
- Retail items intended to sold singly or in small quantities to end users (who may or not have any prior knowledge of the product) should have such important information provided (it is then up to the purchaser whether they pay any attention to it!) as they should not be expected to go hunting for it themselves.
I wondered where the liability would rest with a supplier who sells OEM stuff without instructions and a purchaser doesn't do up a fixing correctly, say bolts on a stem, and suffers injury as a result.
Just my thoughts.
Rick.
Former member of the Cult of the Polystyrene Head Carbuncle.