Purina Pro Plan introduces Pro Plan Renew, a 100 percent natural cat litter made of corncob and cedar. Purina Pro Plan Renew is housed in a recycled and recyclable molded pulp shell jug that contains zero plastic — not even in the friction-fit cap. The bottle was designed in partnership with eco-packaging pioneer Ecologic Brands. Heat and pressure are used to make the jugs strong enough to hold litter while maintaining moisture resistance to keep the product inside dry. The bottle is completely recyclable in most communities: Cat owners are encouraged to recycle the jugs in their curbside single-stream recycling containers, at a community recycling center or, beginning this spring, in PetSmart stores nationwide.  www.ecologicbrands.com