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Best Answer: Rubber is a natural product that breaks down after a while. The only environmental impact is the way they 'manage' the trees, using pesticides and stuff. Rubber is expensive an there isn't enough. The chemical products to replace rubber are made with weakeners and hardeners in the process. These are really bad for the environment.
Environmental impact of concrete. The environmental impact of concrete, its manufacture and applications, is complex. Some effects are harmful; others welcome. Many depend on circumstances. A major component of concrete is cement, which has its own environmental and social impacts and contributes largely to those of concrete. The cement industry is one of the primary producers of carbon dioxide, a major greenhouse gas.