humanity questions 1130 df12

Discuss the following questions:

1. What are you doing at home to reduce energy use from household appliances?
   
   
2. Can recycling help save energy and reduce landfills?
   
   
3. 350.org and other energy groups have set a goal to keep the atmospheric CO2 levels from exceeding 400 ppm by the year 2020. This goal is both possible and economically prudent, yet skepticism remains. 
   
   What do you see as the reasons for both techno-optimism and pessimism related to the goal of stabilizing climate change through changing the energy economy?

the attachment is the reading resource, should around 600 words.