1. Electric cars are they really zero emission?
   •  https://www.theguardian.com/environment/2018/sep/13/electric-cars-climate-change-summit-zero-emissions 
   •   https://www.ft.com/content/a22ff86e-ba37-11e7-9bfb-4a9c83ffa852
2. Product lifecycle analysis, Cradle to Grave. Environmental cost analysis. eg how many years does it take a wind turbine to generate the energy used to extract the materials, construct and transport it)
   • https://www.fmanet.org/blog/2011/06/14/product-lifecycle-assessment-shows-true-environmental-impact
   • A useful video and an even better video explaining the Cradle to Cradle idea
3. Renewable energy sources. What energy changes are involved with renewable energy resources?
   • https://www.bbc.com/bitesize/guides/zsmpk7h/revision/1
   • https://www.energy-uk.org.uk/energy-industry/renewable-generation.html
4. General information can also be found here on the Greenpeace website

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