Izhar Gafni smiles and shakes his head in wonder when asked about the whirlwind of events that have taken place since news of his revolutionary cardboard bicycle first made international headlines a few weeks ago. As an amateur cycling enthusiast, Gafni was inspired to create a bicycle using common cardboard following a visit four years ago to a local cycling store, he says. We were all chatting in the store, and somehow started discussing how someone had built a canoe out of cardboard," he recalls. "It was this canoe that was sitting in the back of my head when it suddenly struck me: Why not make a bicycle out of cardboard, too?" Even though friends and experts warned him that it could not be done, Gafni refused to give up, growing ever more determined to take on what appeared to be an impossible challenge. "There is really no knowledge of how to work with cardboard except for using it to make packages," he explains, describing how he started to explore the material, which is essentially made from wood pulp, folding it in a variety of ways like origami and adding a mixture of glue and varnish to get it to the strength he desired. "It is still a work in progress, and we are still looking at how to create a design that can be mass-produced," says Gafni, who ... hopes to sell the bicycle to markets in Africa in the near future. "There is no doubt that cheap bikes at $20 a pop could really transform the lives of people living in poor countries who need to walk ... to get to a clinic for medical treatment or find work," says Karin Kloosterman, founder and editor of the Middle East's premier environmental news website, Green Prophet.