Exceeding our GHG reduction goal to reduce climate impact
To lessen our impact on climate, Sonoco established a goal to materially reduce normalized greenhouse gas (GHG) emissions by 15% over five years. Our strategy focused on reducing use of higher emitting energy sources, particularly coal, and transitioning to less carbon-intensive natural gas and biogenic carbon-neutral biomass (C02 = 0). This effort required significant planning, engineering and investment in our global uncoated recycled paperboard (URB) mills, including a $75 million biomass cogeneration facility in our Hartsville, S.C., manufacturing complex to reduce energy costs.
The benefits of this strategy have been dramatic. In five years, Sonoco reduced normalized GHG emissions by nearly 24%, with normalized emissions in 2014 dropping nearly 12% and direct emissions (Scope 1) from Sonoco’s facilities reduced by 21%, reflecting the success of the new Hartsville biomass boiler system.
In addition to lowering CO2 emissions at the Hartsville complex by nearly 65% over five years, we significantly reduced emissions of sulfur dioxide (down 95%), nitrogen oxides (down 65%) and particulates (down 91%). The new unit also provides approximately $8.5 million in annual cost savings while producing 120,000 MW (megawatts) of green electricity. Fueling the boiler is about 400,000 tons per year of processed wood debris (from limbs, stumps and other wood wastes) coming from timber operations in northeast South Carolina, which allows us to reduce coal usage significantly each year.
The carbon neutrality of biomass
The carbon neutrality of biomass harvested from sustainably managed forests has been recognized by an abundance of studies, agencies, institutions and legislation around the world, including the guidance of the Intergovernmental Panel on Climate Change and the reporting protocols of the United Nations Framework Convention on Climate Change. Sonoco has more than 50,000 acres of sustainably managed forests in South Carolina, which it harvests primarily for pulp for papermaking. The Company also repurposes approximately 400,000 tons of regional wood wastes and residuals to fuel our Hartsville biomass cogeneration operations—and we are one of the largest recyclers of paper in the Southeast U.S., which reuses valuable resources to make recycled paper.
Sonoco Recycling works to implement and encourage recycling programs through its Sonoco Sustainability Star Awards program, created in 2011 to recognize customer- and Sonoco-owned facilities for achieving significant milestones in landfill diversion and waste stream reduction. Over 10% of our 330 facilities and 20 of our customers’ operations have achieved Sonoco Sustainability Star Awards, including several facilities that have reached total landfill diversion.
Sonoco is committed to responsible use of natural resources through responsible sourcing, recycling and use of recycled fiber in our paper-based packaging. Sonoco’s U.S., Canadian, U.K., Brazilian and one of our Mexican mills are certified to one or more fiber certification programs. These are: the Forest Stewardship Council® (FSC®), Sustainable Forestry Initiative® (SFI®) and the Program for the Endorsement of Forest Certification® (PEFC®) Chain of Custody and Due Diligence System Standards. Additionally, we have plants in our composite can packaging, industrial tubes & cores, and primary packaging carton operations that are certified to these programs and can produce certified packaging. Overall sales (certified and not) by these mills and fiber certified plants is equal to 15% of Sonoco’s revenue.
All but three of our 19 global paperboard mills use 100% recycled fiber in their production. Some amount of responsibly-sourced virgin fiber is needed for select grades of paperboard. The amount of recycled fiber in our composite cans range from 60 to 80+ percent, depending on the product specifications for the package. On average, the amount of recycled fiber used in our industrial tubes and cores exceeds 95 percent.
Key environmental metrics
To learn more about our key environmental metrics, click on the thumbnail below.