Original drawing released into the public domain by Pearson Scott Foresman.
http://commons.wikimedia.org/wiki/File:Cloud_seeding_(PSF).jpg

I used rg1024's grass for the uuh, grass.

Tags: media, clip_art, public_domain, image, png, svg, generator, dispersion, device, dispenser, ground, based, cloud, seeding, weather, modification, clouds, rain, sketch, outline, line_art, art, line, drawing, black, white, generator, dispersion, device, dispenser, ground, based, cloud, seeding, weather, modification, clouds, rain, sketch, outline, line_art, art, line, drawing, black, white