1. Transportation energies. Cast iron scrap is collected in Europe and shipped 19,000 km to China where it is recycled. The energy to recycle cast iron is 5.2 MJ/kg. How much does the transportation...

1. Transportation energies. Cast iron scrap is collected in Europe and shipped 19,000 km to China where it is recycled. The energy to recycle cast iron is 5.2 MJ/kg. How much does the transportation stage add to the total energy for recycling by this route? Is it a significant increase?

2. Embodied energy. A range of office furniture includes a chunky hardwood table weighing 25 kg and a much lighter table with a 2.0 kg virgin aluminum frame and a 3.0 kg glass top. Which of the two tables has the lower embodied energy? Use data from the data sheets of Chapter 15 to find out.