• To  determine the environmental impacts of various types of paper in terms  of energy used, greenhouse gases and other air pollutants emitted,  waste water volume and pollutants discharged, and solid waste  generated, enter the appropriate data in the Environmental Defense  Paper Calculator: http://www.environmentaldefense.org/papercalculator/.  This website provides charts and graphs showing the impacts of  different types of paper (freesheet, groundwood, corrugated, and  paperboard, etc.) with different recycled contents.
• Comparisons:
  

• A  pallet of copier paper (20-lb. sheet weight or 20#) contains 40 cartons  at 50 pounds each and weighs one ton (2000 lbs).  Each ton of such  virgin paper (no post-consumer content) uses 24 trees.  
  
• One carton (10 reams) of virgin copier paper uses 0.6 trees.
• One tree makes 16 2/3 reams of copy paper, or 8333 sheets.  Source: Conservatree http://www.conservatree.com/learn/EnviroIssues/TreeStats.shtml .

• See the Electronic Product Environmental Assessment Tool (EPEAT): http://www.epeat.net/FastBenefits.aspx

• Paper and plastic products with significant quantities of post-consumer recycled content
• Re-manufactured products (e.g., ink and laser toner cartridges)
• Electrical products that are solar powered (e.g., calculators) or certified as energy efficient by Energy Star
• Compact fluorescent light bulbs and other energy efficient lighting
• Products that are reusable, rewritable, refillable, rechargeable, more durable or repairable
• Products that are recyclable 
• Cleaners and solvents that are nontoxic; non-VOC (volatile organic  compound); biodegradable; water-based; ammonia-,  phosphate-, and  chlorine free; and derived from renewable resources rather than  petroleum
• Detergents, cleaners and other liquids in concentrate, which minimizes packaging
• Writing instruments with non-toxic inks or other marking fluids 
• Furniture, carpets, and paints that do not emit harmful levels of VOCs from adhesives or finishes