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Global warming and climate change

27 November 2013, 09:24

                      GLOBAL WARMING AND CLIMATE CHANGE.

There are so many opinions relating to global Warming and Climate change that it has become difficult to analyse who believes what and what is the official opinion?  When some or other scientist declares his work, most believers and non-believers get onto the band-wagon and the final result is a garbled line of words saying nothing reasonable or intelligent for that matter and the scientists are always wrong..

The following synopsis has been taken from the subject on the internet. 

(1)            Climate is the average measure of the average pattern of variation in temperature, humidity, atmospheric pressure, wind, precipitation, atmospheric particle count and other meteorological variables in a given region over a long period of time.

(2)           Climate is different to weather in that weather only describes the short-term conditions of these variables in a given region.

(3)           A regions climate is generated by the climate system, which has five components: Atmosphere,  Hydrosphere, Cryo sphere, land surface and biosphere

(4)           The climate of a location is affected by its latitude, terrain and altitude, as well as nearby water-bodies and their currents. Climates can be classified according to the average and the typical ranges of different variables, most commonly temperature and precipitation.

The most commonly used classification scheme was originally developed by Vladimir Kop pen.

(5)            The Thornthwaite system in use since 1948 incorporates evapotranspiration along with temperature and precipitation information

(6)           The Bergeron and spatial synoptic classification systems focus on the origins of air masses that define the climate of a region.

(7)           Pale climatology is the study of ancient climates. Since direct observation of climate is not available before the 19th century.  Paleoclimates are inferred from proxy variables that include non-biotic evidence such as sediments found in lake beds and ice cores.

(8)           Climate models are mathematical models of past present and future climates,  Climate change may occur over long periods and short timescales from a variety of factors:

(9)           Recent warming is discussed in global warming, is the rise in average temperature of earth’s atmosphere and oceans since the late 19th century and its projected continuation.  Since the early 20th century, Earths mean surface temperature has increased by about 0,8celcius (1,4f) with about two thirds of the increase occurring since 1980.

(10)     Warming of the climate system is unequivocal, and scientists are 95 – 100% certain that it is primarily caused by increasing concentration of greenhouse gasses produced by human activity such as burning fossil fuel and deforestation.  These findings are recognized by the national science academies of all major industrialized nations.

(11)     Future climate change and associated impacts will vary from region to region around the globe. The effects of an increase in the global temperature include a rise in sea levels and a change in the amount of pattern precipitation as well as a probable expansion of sub-tropical  deserts

(12)     Warming is expected to be the strongest in the Arctic with the continuing retreat of the glaciers, permafrost and sea ice.  Other likely effects of the warming include more frequent extreme weather events included, heat waves, drought and heavy rain falls, Ocean acidification and species distinction due to shifting temperature regimes.  Effects significant to humans include the threat of food security from decreasing crop yields and the loss of habitat from inundation

(13)     Proposed policy responses to global warming include mitigation by emissio0ns reduction, adaptation to its effects and possible future geo -engineering. Most countries are parties to the UNFCCC   United Nations Framework convention  on climate change whose ultimate objective is to prevent dangerous anthropogenic climate change(Human induced) Parties to the UNfCCC have adopted a range of policies designed to reduce green house gas emissions.

(14)     Scientific Discussion:  most scientists believe, agree that humans are contributing to observed climate change.  A meta study of  academic papers concerning  global warming published in 1991 and 2011 and accessible from Web of knowledge  found that among those abstracts expressed a position on the cause of global warming, 97,2 % supported the consensus view that it is man-made

(15)     From 1990 – 1997 in the US, conservative thinker-tanks mobilized to undermine the legitimacy of global warming as a social problem. They challenged the scientific evidence, argued that global warming will have benefits, and asserted that proposed solutions would do more harm than good

(16)     SURVEYS of public opinion:  Researchers at the University of Michigan have found that the public belief as to the causes of global warming depends on the wording choice.

(17)     In 2007  - 2008 Gallup polls surveyed 127 countries over a third of the world’s population was unaware of global  warming

(18)     For obvious reasons I cannot reply to questions and comments: Reference:  Use headlines of this article:

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