Global Warming

Connection with global warming

Nitrous oxide is a powerful greenhouse gas, being that this gas is considered partly responsible for global warming, as is carbon dioxide, methane and some other aerosols.  Greenhouse effect is the natural process of planet Earth getting hotter. Gases known as greenhouses gases, present in the atmosphere reduced the rate at which there thermic transference of heath from Earth into space. This gases help maintain Earth’s temperature at a stable level.

One of these greenhouse gas is nitrous oxide, which is decomposed in the atmosphere by chemical reactions induced by light, however nitrous oxide takes about 120 years to decay in the atmosphere. Nitrous oxide contribution to the greenhouse effect is affected by both is characteristics and its abundance. Nitrous oxide contributes only 9% of the emission associated with greenhouse gases, but has a capacity 310 times superior to carbon dioxide in absorbing energy. Add that to the time, noted before, that nitrous oxide takes to decay in atmosphere, and we have a major gas in the greenhouse effect. Another relevant fact is that in the troposphere it acts as a greenhouse gas, in the stratosphere it destroys the ozone layer, due to fact that nitrous oxide generates nitric oxide (NO) when it reacts with oxygenpNitrous oxide has also known analgesic effects; this meaning it can relieve pain. Nitrous oxide induces analgesia by activating opioid neurons in the periaqueductal grey matter and in the adrenergic neurons in locus ceruleus, areas 5 and 7 of the brain (somatosensory cortex). The corticotrophin release factor, released by the hypothalamus, seems to be critical to the activation of the locus ceruleus, a fact that might be provoked the inhibition by NMDA receptors. atoms, and consecutively the nitric oxide reacts with ozone.

Since the Industrial Revolution, nitrous oxide concentration grew about 16%, and it contributes for 4% to 6% of greenhouse effect.  Nitrous oxide has been ignored the proper authorities as a worrying greenhouse gas, when compared to carbon dioxide and methane. However, according to figures by the Intergovernmental Panel on Climate Change (IPCC), the impact of nitrous oxide is far from insignificant, as it ranks third in terms of emission produced in 2000 of greenhouse gases.