What are the desirtification percentages in Africa, America, and the world?

These two websites show the percentages of Africa and the world that are deserts.

http://wiki.answers.com/Q/What_percentage_of_Africa_is_desert

What do you mean by America? the U.S.? North America and South America?

By america i mean just North America

I couldn't find the exact statistics for North America, but as you can see from this map, deserts cover 5% or less of North America.

http://ag.arizona.edu/~lmilich/desert.html

Here's the other site.

http://www.galeschools.com/environment/biomes/desert/index.htm

To find the desertification percentages in Africa, America, and the world, you would need to gather data from reliable sources such as scientific studies, reports from environmental organizations, or statistical databases. Here is a step-by-step approach to finding this information:

1. Start by searching for reputable sources that provide data and statistics on desertification. Some reliable sources may include the United Nations, the World Bank, or other international organizations focusing on the environment.

2. Visit the websites of these organizations and navigate to their environmental or land degradation sections. Look for specific reports or publications related to desertification. These reports often include global or regional analysis, including information on Africa and America.

3. Pay attention to the methodology used to estimate desertification percentages. Different organizations and studies may use varying criteria or indicators to measure and classify desertification, so it is important to have a clear understanding of the specific definition and methodology being used.

4. Look for the most up-to-date reports or publications available. Desertification percentages may change over time due to factors such as climate change, human activities, and land use practices. Ensure that you are accessing the most recent data for accurate information.

5. Once you have gathered information from multiple sources, compare the findings to obtain a comprehensive understanding of desertification percentages in Africa, America, and the world. Note any variations in data, as different sources may provide slightly different statistics based on their research and analysis.

Remember, the specific desertification percentages can vary depending on the source and the time frame being considered. Therefore, it is important to refer to reliable sources and verify the credibility of the data.