"The World Widlife Fund recently launched a "new file format"
called .WWF, which is green because it cannot be printed, so it
saves trees by stimulating people to reduce their consumption of
"In reality, the "green" .WWF format, which is essentially, just
a PDF file with printing disabled. is a dumb idea for two reasons.
First, too many file formats are bad in general. Second, .WWF only
announced support for the two… most polluting operating
systems. Both of these reasons are already explained in detail in
another article, which also got lots of interesting comments."
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