Monday, October 26, 2009

36 football fields a minute? Let's check

According to the following report, deforestation is claiming forested woodlands at a rate of 36 football fields a minute:


Forests Disappearing At Rate Of 36 Football Fields Per Minute

This is from the World Wildlife Foundation. Now I know that deforestation is a bad thing, and I don't doubt that it's happening. But this seems rather fast.

A football field is 120 x 53.3 yards = 6396 square yards = 5347 square meters. Let's be conservative and call it 5000 square meters. So that's 36 x 5000 = 180,000 square meters a minute.

180,000 square meters a minute = 259,200,000 square meters a day.
259,200,000 square meters a day = 94,608,000,000 square meters a year,
which 94,608 square kilometers a year.

The United States is 9,161,923 square kilometers. Doing the percentages, that would mean that an area equivalent to 0.1 percent of the total surface area of the United States is deforested every year.

Which surprises and troubles me. I guess that's possible.

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