There are environmental benefits when it comes to using EPDM in your pond or lake, including but not limited to its long lifespan. EPDM is highly reflective and can reduce energy consumption by reflection heat and light. This means that there is less need for air conditioning and lighting. Additionally, EPDM is recyclable and can be converted into other rubber products.
EPDM's long lifespan means that you won't need to be repurchasing a new liner as often. EPDM liners can even last over 20 years if properly installed and taken care of. Since pond liners often need to be made out of virgin EPDM, this prevents the introduction of more petroleum-based material than necessary.