This resource is aimed at KS3 students and can be used as part of a topic on Global Warming or as a stand alone lesson for a cover/supply teacher. The lesson is delivered through a PowerPoint, the main lesson objectives being to get students to understand the causes of Global Warming and then calculate their own Carbon Footprint by answering a series of questions and calculating their score. Having identified the factors which add to their Carbon Footprint they can then use this information to produce a poster explaining ways to reduce our carbon Footprint. The presentation contains lesson objectives, an Odd One Out starter activity and a Blockbuster Style plenary, An answer sheet for this activity is also included.