I am a 7 letter word.
You read me daily.
My 5 6 7 letter increase every year.
3 & 4 letter r same.
My 3 2 5 letter cover 79% of the world.

I’m teary-eyed but never cry.
Silver-tongued, but never lie.
Double-winged, but never fly.
Air-cooled, but never dry.

What am I?