1) The document discusses the importance of conserving energy for a sustainable future. It explains that non-renewable energy sources like fossil fuels are finite and will be depleted if consumption is not reduced. 2) It provides examples of how to conserve energy at home and while commuting by turning off lights when not in use, using more efficient appliances, and combining trips to reduce car use. 3) Conserving energy now will help address issues of energy security, reduce environmental impacts, and help adapt to rising energy prices in the future as fossil fuel supplies diminish.