I removed the glass from all of my old windows. Discarded the frames, but was able to cut the glass to replace broken glass in picture frames. Also made some new frames big enough to hold small posters.
Or try to find a junk man - he'll probably be glad to take them off your hands (don't expect to get any money for them.) Salvation Army/Goodwill/VOA might take them. Or may be Habitat for Humanity (though they tend not to use recycled materials.)
Thanks for being environmentally friendly. Hope you can find a taker.