| Global warming is described as the apparent rise in | | | | extended droughts, killer heat waves, killer |
| the average normal temperature of the planets | | | | hurricanes, and super tornados. Still other results |
| atmostphere and its seas in the immediate past | | | | would be unpredictable yields, melting of glaciers, |
| decades. This takes into consideration its | | | | drying up of streams especially during summer, |
| progression in the years to come. | | | | extinction of certain species and more violent |
| In the 1900s, the average temperature near the | | | | strains of diseases. While it is true that global |
| lowermost layer of the earths atmosphere | | | | warming undoubtedly affects the frequency and |
| increased by A±0.2 A°Celsius or 0.4 | | | | degree of the aforementioned incidences; it is, on |
| A°Fahrenheit. Most scientists studying climate | | | | the other hand, also difficult to blame these |
| change opine that this 50 years of observed | | | | undesirable turn of events to global warming. Most |
| global warming can be blamed on human | | | | projections cover the period till 2100; warming and |
| activities.The main cause of waming is the | | | | the consequent rise in sea level is seen to go on |
| marked rise in the concentration of greenhouse | | | | beyond then as carbon dioxide has a relatively |
| gases or GHGs like carbon dioxide (CO2), which | | | | long atmospheric lifetime. |
| aggravates the greenhouse effect by warming | | | | Climate change, which is the more general |
| the surface of the earth and the lower portion of | | | | description of global warming, could also refer to |
| the atmosphere. Destructive activities like the | | | | global cooling as what transpired during the ice |
| burning of fossil fuels, land denudation and other | | | | ages. Global warming happens naturally, but is |
| agricultural practices contribute to the proliferation | | | | more associated with human neglect and abuse. |
| of these greenhouse gases. | | | | However, most researches and write ups |
| Projections made by the Intergovernmental Panel | | | | referring to global warming are done in the |
| on Climate Change or IPCC reveal that global | | | | context of human influence. |
| temperatures should increase from 2.0 - 5.8 | | | | For the past 400,000 years, accumulation of |
| A°C or from 2.5 -10.5 | | | | carbon dioxide from start of the Industrial |
| A°F between 1990 and 2100. This | | | | Revolution, has altered the Earth's pathway |
| wide range seems uncertain, the exact value | | | | around the Sun, or Milankovith cycles as it is |
| cannot be pinpointed as it is highly improbable to | | | | known. Major changes in the climate system can |
| predict the level of future emissions of | | | | either occur naturally or be caused by external |
| greenhouse gases (no one knows how much | | | | factors, outside of human or non-human influence. |
| fossil fuel would be left then). Moreover, climate | | | | This includes developments in solar movements |
| sensitivity cannot also be predicted. | | | | and alignment, emissions from volcanic eruptions, |
| Higher global temperatures bring about drastic | | | | deviation in the earth's pathway or orbital forcing |
| changes which include a rise in sea level, as well as | | | | and the formation of greenhouse gases. Scientists |
| the volume and the erratic pattern of rainfall. | | | | who study climate changes agree that the earth's |
| These changes can increase the danger of | | | | temperature has indeed risen alarmingly. |
| extreme weather conditions, eg. raging floods, | | | | |