Discover the new technologies being developed to provide energy across the globe. People and places -Future of energy - Energy sources Learning Points Most energy comes from burning fossil fuels. Fossil fuels will eventually run out. Fossil fuels produce carbon dioxide when burnt. The demand for energy is increasing. A Twig Curriculum Film. Delivering key learning points. Get straight to the facts in just three minutes – directly linked to core learning, Twig's curriculum films will fit neatly into your lesson plans.