User:Wavelength/About Earth's environment/Googleshare of "environment"

The words listed below were selected from Glossary of environmental science and then listed on a text document. On 12 and 13 July 2008, I used Google to search in turn for each word or series of words. I did not use quotation marks, and I did not use Advanced Search, but I did search with SafeSearch turned on. For the first line, I used the following sequence. For the other lines, I used the same sequence, except that I added an extra step.
 * with the mouse, highlight the word "environment"
 * with the mouse, copy the word "environment"
 * with the mouse, activate the Web browser
 * with the mouse, place the mouse pointer inside the Google text box
 * (extra step added after the first line)
 * with the mouse, paste the word "environment"
 * press the "Enter" key
 * with the mouse, highlight the number of results (and the preceding space)
 * with the mouse, copy the number and space
 * with the mouse, activate the text document
 * with the mouse, place the mouse pointer after the word "environment"
 * with the mouse, paste the number and space
 * with the mouse, click until the previous search text is completely highlighted

According to Googleshare, "acid mine drainage" had a Googleshare of "environment" amounting to 207,000 ÷ 465,000,000 ≈ 0.045%. I do not know why "best practice" had a Googleshare of "environment" amounting to 1,140,000,000 ÷ 465,000,000 ≈ 245%.