Most of the energy people use today to generate electricity and heat for homes and businesses, create products and have transportation running comes from non-renewable sources.

Fossil fuels include natural gas, oil and coal. These fuels consist mostly of hydrogen and carbon. They are organic substances rich in energy that scientists have traced to organisms that lived on our planet somewhere between 300 and 400 million years ago. Today, people are extracting these substances from the crust of the earth and turning them into various consumer fuels such as gas, propane, and others.

Uranium is yet another example of an energy source that is not renewable. Uranium is used to power nuclear power plants that create electricity. While these power plants create very few emissions, they come with their own set of problems and issues, including removal, disposal and storage of radioactive waste.

To this day fossil fuels play a huge role in the life of Western countries, which is why energy conservation and efficiency are so important. For example, in the United States, 85% of the energy comes from fossil fuels. Fossil fuels are also the main contributor of greenhouse gases into the atmosphere, including carbon dioxide, sulphur dioxide and other harmful substances.

When thinking about energy conservation and sustainability, most people think about the energy that humankind needs to extract, process and generate before its consumption. However, of the huge issues of nature preservation is the issue of waste and it doesn’t matter if it is dirty water that comes from the pipes in a toilet in a casino or waste from a factory smokestack. All waste can pollute water, land and atmosphere. While it may be easy for people to remove the waste, hide it and forget about it, it is not possible to protect nature from it just by hiding it out of sight.