An Introduction to a carbon footprint低碳方面——碳足迹的介绍.ppt

An Introduction to...  A Carbon Footprint By *** What can you see from these pictures? What is A Carbon Footprint ? A measure of the total amount of carbon dioxide(CO2) and methane(CH4) emissions of a defined population, system or activity What is A Carbon Footprint ? A carbon footprint is made up of the sum of two parts, the primary footprint and the secondary footprint. ?When you drive a car, the engine burns fuel which creates a certain amount of CO2, depending on its fuel consumption and the driving distance. When you buy food and goods, the production of the food and goods also emitted some quantities of CO2.? What Can YOU Do ? Calculate and understand your “carbon footprint” Reduce your use of energy Look for ways to use renewable energy Support efforts by all who encourage Energy efficiency Renewables Carbon neutrality What Can YOU Do at school? Turn off electronics when not in use Eat lower on the food chain - less (or no) meat Use a mug, not a throw away cup Walk, bike, or use the bus whenever possible, don’t drive Bring lunch and snacks to school in reusable containers Thank you. A measure of our direct emissions of CO2 from the burning of fossil fuels A measure of the indirect CO2 emissions from the whole lifecycle of products Greenhouse gases can be emitted through transport, land clearance, and the production and consumption of food, fuels, manufactured goods, materials, wood, roads, buildings, and services . Raw materials Production Distribution and retail Consumer use End of life