Workers in the fields of green construction and business play an important role in the effort to conserve energy and protect the environment. Increasingly, new structures are built to standards that minimize environmental impact and utilize alternative forms of energy. Existing structures are also retrofitted to meet green standards. While new businesses find investors to support efforts to go green and fund new environmentally oriented companies, existing businesses hire consultants to help them identify ways to restrain use of resources like paper and energy and diminish their environmental impact