Moonbeam,
Hankies may be reusable but you waste precious time, water, and electricity washing them over and over again. Tissues are far more convenient, can readily be shared with friends and family without fear of spreading harmful bacteria and, from the Kleenex web site:
<< KLEENEX® tissue is made with biodegradable cellulose fibers. >>
<< Our cartons are fully recyclable with the poly insert attached. They are accepted at recycling facilities across the country. >>
As for Gore and the environment...I truly feel it's the first thing he talks about and the last thing cares about. If you seriously care for the trees you must give your mind, body and soul to Nader and the Green party. Of course that carries its own set of alligator-hide baggage but nobody said decision making is easy.