Emissions trading market in pollution-licenses is more widely applicable than the market in emission-licenses. The international community began the long process towards building effective international and domestic measures to tackle GHG emissions (carbon dioxide, methane, nitrous oxide, hydroflurocarbons, perfluorocarbons, sulphur hexafluoride) in response to the increasing assertions that global warming is happening due to man-made emissions and the uncertainty over its likely consequences. That process began in Rio in 1992, when 160 countries agreed the UN Framework Convention on Climate Change (UNFCCC). The UNFCCC is, as its title suggests, simply a framework; the necessary detail was left to be settled by the
Nitrous oxide system, and this may be related to its analgesic and anxiolytic properties. Nitrous oxide is 30-40 times more soluble than nitrogen. The effects of inhaling sub-anaesthetic doses of Nitrous Oxide have been known to vary, based on several factors, including settings and individual differences, however, from his discussion, Jay (2008) suggests that it has been reliably known to induce the following states and sensations: A minority of users also will present with uncontrolled vocalisations and muscular spasms. These effects generally disappear minutes after removal of the nitrous oxide source. In rats, stimulates the mesolimbic reward pathway via inducing dopamine release