Some parts of Earth are getting overloaded and tired. Mother Earth needs help from some babysitters to take care of her children. If you have a cat, you know there is litter box to take care of, or else a corner in the barn that needs to be cleaned out once in a while. The time has come, there needs to be some caretaking, some cleaning up after human activity in our world. If Mother Earth is tired, who will carry and sustain us? There has been enough human activity, especially the use of fossil fuels - coal, oil and natural gas - to have a dramatic impact on the overall balance for life on Earth. Other sources of energy are available. Of course, population has increased but the increase in energy use is way beyond this. Everything we do, every activity, takes energy. Every time energy is used, there is some leftover, a footprint, some waste. (This is about energy. There are many other environmental impacts resulting from human activity.) Fossil fuels came into large-scale use in the I...