To learn about our efforts to improve the accessibility and usability of our website, please visit our Accessibility Information page. Skip to section navigation or Skip to main content
Below is an advertisement.

Seattle Mariners Sustainability

Seattle Mariners SustainabilityThe grass isn't the only thing that's green at Safeco Field. With a sincere and sustained commitment, the Seattle Mariners are working to significantly reduce our environmental impact.

Since 2006, the Mariners have been leaders in sustainable ballpark operations. Further, we use the power of our position as a community leader to educate and encourage fans, partners, employees and the community at large to make changes both large and small that advance the cause of sustainability.

  • Recycling/Composting

    Annual Recycling RateThe Mariners recycle or compost over 90% (90.94%) of all waste generated at Safeco Field. In 2005, the rate was just 12%. Nearly everything used at Safeco Field is recyclable or compostable including food service items (plates, knives, forks, cups, straws, bottles, etc.). Compost and recycling bins have replaced garbage cans on concourses and cleaning crews hand separate plastics and compostable waste after each game. The Mariners concessions partner Centerplate donated over 25,000 pounds of food to the Union Gospel Mission and Food Lifeline and recycles nearly 10,000 gallons of cooking oil each year.

    During 2013, due to recycling and composting, the Mariners diverted over three million pounds of waste from the landfill, saving $114,000 in waste disposal costs.

    For the second consecutive year, Major League Baseball has named the Seattle Mariners the American League Recycling Champions

  • Investing in Sustainability

    Not only is "greening" the right thing to do, it's also good for the corporate bottom line. A comprehensive capital investment program at Safeco Field has resulted in savings of more than $1.75 million in electricity, natural gas, water and sewer charges since 2006. Updated lighting and mechanical systems, installation of low-flow urinals and faucets, and a variety of other measures have reduced consumption of utilities significantly:

    • Since 2006, the Mariners have reduced the use of natural gas 40%, electricity 25% and water use by 25%.
    • Energy efficient and motion sensor fixtures have reduced power usage in the parking garage by 50%.
    • The LED Out of Town Scoreboard, installed in 2010, uses 90% less power than the old incandescent light technology.
    • Low-flow urinals and faucets save one million gallons a year.
  • Environmental Impact

    The Mariners energy conservation and recycling measures have resulted in:

    • Reduced greenhouse gas emissions by 40.7 million pounds (CO2)
    • Equivalent of planting 15,132 acres of forest*
    • Equivalent of taking 3,846 cars off the road*

    (*U.S. EPA)

  • Zero Waste Stations

    Zero Waste StationsZero Waste Stations placed strategically throughout the public areas of Safeco Field educate and encourage fans to recycle by placing their waste in the proper containers. There are 16 Zero Waste Stations with containers for recyclable bottles and cans, food waste and compostables, and the only landfill-bound waste containers in the entire ballpark. Because nearly everything used to stage an event at Safeco Field is recyclable or compostable, the landfill waste containers have been replaced by over 400 recycling/compostables containers.

  • Sustainable Saturdays

    Sustainable SaturdaysThe Mariners and BASF partnered again in 2013 on a unique season-spanning awareness program to call attention to various environmental issues. During each of the 10 Sustainable Saturdays, fans participated in a text-based trivia contest that encourages fans to look for clues at Zero Waste Stations for a chance to win a Samsung Galaxy Tab 2.0. On Sustainable Saturdays, Zero Waste Stations are staffed by trained Camp Fire USA volunteers who helped fans with proper disposal of ballpark waste.

  • Alternative Energy

    Alternative EnergyFour electric vehicle charging stations are located next to the Safeco Field parking garage, available for use 24 hours a day. Each 240 volt AC input unit is capable of fully recharging a vehicle battery in two-to-six hours. Blink Network registration is required.

    Alternative EnergyAn array of Panasonic HIT® Double solar panels on the skybridge connecting Safeco Field to the parking garage generates 40,000 kilowatt hours of power annually, which is fed into the Safeco Field distribution grid. Fans can track the energy generated on video displays inside the ballpark and online at

  • Captain Plastic & Kid Compost

    Captain Plastic and Kid CompostThe Seattle Mariners are assisted in spreading the word about sustainability by the team's two environmental superheroes-Captain Plastic and Kid Compost. Their mission is to help make Safeco Field as "green" as possible. Together, they urge fans to join the "Green Team" at Safeco Field and at home. They appear on signage, recycling bins, video features and make live appearances during games to encourage fans to participate in the ballpark's recycling and composting efforts.

  • Mariners are a Green Team

    • Mariners were the first MLB team to stage a "carbon neutral" game on Earth Day 2008 and continue to offset carbon and water impacts for Earth Day games each season.
    • 98% of custodial products used to clean Safeco Field are green certified.
    • Paper products used in all bathrooms (hand towels, tissue, toilet paper) made from 100% recycled content and are manufactured in Washington state.
    • Low-flow urinals in men's rooms save over 1 million gallons of water each year. Low-flow toilets will be installed in women's restrooms prior to the 2014 season, resulting in additional savings.
    • Motorized grounds keeping equipment runs on B-20 biodiesel.
    • Covered, secure, free parking for over 200 bicycles is located in the Safeco Field garage.
    • Front office and game day staff receive free public transportation vouchers and day of game employees who carpool get free parking
    • The Seattle Mariners Team Stores offer an expanding selection of organic and sustainable products including men's and women's T-shirts, caps and other products.
  • Green Sports Alliance

    Bud SeligThe Mariners are founding members of the Green Sports Alliance, a groundbreaking coalition of professional sports teams and sporting venues committed to promoting "greening initiatives" in sports. In 2012, MLB Commissioner Allan H. (Bud) Selig was honored by the Alliance at its annual summit at Safeco Field with the first Environmental Leadership Award.

    The nonprofit organization was launched in 2011 with founding members from six major leagues (MLB, NFL, MLS, WNBA, NHL, NBA), their home arenas, the Environmental Protection Agency and Natural Resources Defense Council. It is the first time teams from the six major professional sports had collaborated on a common environmental agenda. Since the launch, over 170 sports teams and venues from 15 different sports leagues across North America have joined the Alliance.

    Scott Jenkins, Mariners Vice President of Ballpark Operations, serves as Chair of the Board of Directors of the Green Sports Alliance.

  • Awards and Accolades

    2013 - Major League Baseball American League Recycling Champions 2013 - Natural Resources Defense Council Game Changer Award, Scott Jenkins, Vice President Ballpark Operations
    2013 - NW Energy Coalition Bob Olson Memorial Conservation Eagle Award, Scott Jenkins, Vice President Ballpark Operations
    2012 - MLB American League Recycling Champion
    2011 - Washington State Recycling Association Recycler of the Year
    2011 - Seattle Business magazine Green Washington Environmental Leadership Award
    2011 - International Association of Venue Managers Venue Excellence Award
    2008 - Washington CEO Magazine Green Washington Awards Special Recognition

    Seattle Mariners "Green" Fast Facts

    • Recycle over 90% of all waste generated at Safeco Field.
    • The Mariners are second only to the San Francisco Giants for recycling in MLB.
    • Diverted over 3 million pounds of waste from the landfill in 2013, saving $114,000 in dumping fees.
    • Saved $1.75 million in utilities costs since 2006 through conservation.
    • Reduced annual natural gas use 40%.
    • Reduced annual electricity use 25%.
    • Reduced annual water/sewer use 25%.
    • Reduced greenhouse gas emission since 2006 equivalent of planting 15,000 acres of forest.