The Baltimore Energy Challenge instructs Baltimore City citizens, companies, and organizations on low to no cost strategies to save energy. By taking the pledge, the non-profit organization will give a kit that provides ways to save energy.
When discussing energy there are two sources: renewable and non-renewable. The natural resource that has no negative effects on the environment is a renewable source. Natural resources for renewable energy are abundant and sustainable. These energy sources are environmentally friendly and can be renewed organically.
Non-renewable energy sources are harmful to the environment and have a finite supply. Non-renewable resources can be taken from the planet but eventually run out.