Fossil Fuels:Fossil fuels are hydrocarbon-based resources formed from ancient organic matter buried deep within the Earth's crust over millions of years. They are the most commonly used non-renewable energy sources.
Greenhouse Effect:The greenhouse effect refers to the trapping of heat in Earth's atmosphere due to certain gases (such as carbon dioxide) that prevent some heat from escaping into space. Burning non-renewable energy sources contributes to this effect by releasing greenhouse gases.
Peak Oil/Peak Gas/Peak Coal: These terms refer to the point at which global production rates of oil, natural gas, or coal reach their maximum levels before starting a decline due to depletion. It signifies that these non-renewable resources are becoming scarcer and harder to extract.