An analysis of the many contradicting definitions of desertification

Shop What is Desertification? Desertification is defined as a process of land degradation in arid, semi-arid and sub-humid areas due to various factors including climatic variations and human activities. Or, to put it in another way, desertification results in persistent degradation of dryland and fragile ecosystems due to man-made activities and variations in climate.

An analysis of the many contradicting definitions of desertification

January at 2: The IPCC position is that natural mechanisms would have caused a slight cooling in the recent past. Instead it warmed significantly. I find this a rather silly argument. Especially it it happens for entirely different reasons than before. Not really my perception. So far the models are pretty good.

Of course, improvements can always be made and I am looking forward to better and better versions. You seem to believe there are some large unknowns that could completely change the models.

You also seem to believe that predicting non-linear systems is some kind of magic. A pendulum is a non-linear system too, one which can be predicted pretty well and I am sure you can intuitively describe where the pendulum will be at a certain point in time.

As intuitive as predicting that additional energy in the climate system will have an effect too. So growth without limits? Can you calculate the correct percentages of the temperature change that both additions caused in this example?

Are you really hoping for that wildcard, surprise variable that nobody has considered yet to change everything? If you want to debate the off chance that the train will derail, fine … but can we do that not standing on the rails?

Look, nothing we do will be environmentally-friendly. But we can make it more sustainable than the system we use today and why not start doing that now? Do you think more fossil fuel is safe, effective and environmentally-friendly? January at 7: In the past, natural factors caused ocean temperatures to rise and fall by 1 degree C per century Bova et al.

Nearly all climate models had Antarctic sea ice declining. It has been growing sincedefying the modeling. The models said that hurricane frequencies and intensities would increase with warming.

Hurricanes have become less frequent and there have been no intensification trends — as admitted by the IPCC.

Desertification in reverse? Observations from northern Burkina Faso - ScienceDirect Before reflecting on a range of things, let me start by answering a question that may have popped into your head: I have no plans to join the Trump administration ha ha.
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The IPCC acknowledged in AR5 that despite models that say otherwise, there have been no trends in increased storm intensities, droughts, or floods. The models predicted that the atmosphere would warm faster than the surface. During the first 8 years of using ARGO, the ocean was cooling.

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Same way with sea level rise. In the early s, it was noticed that sea level rise was not accelerating when considering tide gauge data and it had decelerated relative to the first half of the 20th century.

Or why the Arctic cooled for 50 years afterwards. The models say global warming will cause more than a million animals to go extinct by Sinceonly one animal has gone extinct.

A recent study indicated they are predominantly stable with very little melting. Large regions of the Earth, including much of the Southern Hemisphere, has not warmed in decades.

January at 1: Why was the year with the lowest summer extent observed since ? What a sad understanding of doing science … Large regions of the Earth, including much of the Southern Hemisphere, has not warmed in decades.

There are satellite maps in existence showing the mix.

Desertification - Wikipedia

Also, it is called backradiation for a reason.Play Summary; Oedipus the King; Oedipus at Colonus; Antigone; About the Oedipus Trilogy; Character List; Summary and Analysis: Oedipus the King A short Sophocles biography an analysis of the behavior of romeo and juliet describes Sophocles's life, times, and work.

com: English, psychology and. . b. Percent of national area affected by desertification = x + y + z X n c.

An analysis of the many contradicting definitions of desertification

Percentages of national area affected by severe, moderate and slight desertification respectively can be calculated in the same way. d. Percent of national drylands affected by desertification = x + y + z X d e. Desertification, in short, is when land that was originally of another type of biome turns into a desert biome because of changes of all sorts.

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A huge issue that many countries have is the fact that there are large pockets of land that are going through a process that is known as desertification. ‘Consensus’ Science Takes A Hit In During , scientific papers have been published that cast doubt on the position that anthropogenic CO2 emissions function as the climate’s fundamental control knob or that otherwise question the efficacy of climate models or the related “consensus” positions commonly endorsed by policymakers and mainstream media.

Request PDF on ResearchGate | Scientific concepts for an integrated analysis of desertification | The Global Drylands Observing System proposed in this issue should reduce the huge uncertainty.

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What does desertification mean? definition and meaning (Free English Language Dictionary)