Since the mid-1900s, humans have been exerting an ever-increasing impact on the global nitrogen cycle. Human activities, such as making fertilizers and burning fossil fuels, have significantly altered the amount of fixed nitrogen in the Earth's ecosystems. In fact, some predict that by 2030, the amount of nitrogen fixed by human activities will exceed that fixed by microbial processes (Vitousek 1997).
1 Faux leather is man made fabric (usually polyester) that has been treated with wax, dye, polyurethane, or PVC (polyvinyl chloride) for color and texture that feel like real leather at a much lower cost.
There are lots of ways banded about on how to tell the difference between real leather and faux leather but in truth there is no real way to differentiate between the two unless you can see whats underneath. The underside of real leather is leather and faux leather is normally some man made material. We can normally tell by looking at it but the best way we have found it to test the strength and feel of it. Faux leather tends to stretch a lot more than real leather so by pulling at it you can normally tell.