Alternative Energy and Carbon Dioxide in Environmental Context
Explore the concepts of alternative energy, carbon dioxide, energy wastefulness, and the impact of our energy usage in homes. Discover solutions for a greener future and the consequences of inaction.
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Presentation Transcript
What is Carbon Dioxide? Carbon dioxide (CO2) is not only one of the most important greenhouse gases, it is found all around us: in the air we breathe; in the air we exhale; in fizzy drinks; in cakes, which rise thanks to the CO2 produced by baking powder; and when organic compounds such as paraffin, paper, wood or petroleum are burned. In liquid form, it is used in fire extinguishers and as a refrigerant in the food industry (for example to store and transport ice cream). In high concentrations, CO2 can become dangerous for humans and other animals, but it is also the source of life: during photosynthesis, plants use CO2 and light to produce sugar, starch, fats and proteins, as well as the oxygen we need to survive.
What a waste! Organize the following statements into the correct columns. Leaving the television on stand by Leaving the computer on. Wasteful Energy-saving Having a shower. Filling the bath. Turning off the lights as you leave a room. Using energy-saving lightbulbs. Turning the central heating down one notch.
The energy we use in our homes contributes up to a quarter of the carbon dioxide released in the UK! How do we use energy in our homes? In the kitchen In the bedroom In the living room
Read and print the following reports. Colour the facts red. Colour the opinions green. Street lights across Wales switched off to save money: 20 Sept 2011 http://www.bbc.co.uk/news/uk-wales-14915485 Street lights to go back on in Powys: 24 Oct 2012 http://www.bbc.co.uk/news/uk-wales-mid-wales-20029122 Street lights 'switched off to save money' by councils: 22 Dec 2014 http://www.bbc.co.uk/news/uk-politics-30569215
Watch this short film Lights Out: https://www.youtube.com/watch?v=29vmepNMN9Y
