I made this lesson in order to compel my students to conserve materials and think critically of their decisions in the future.  Unfortunately I debuted the lesson the week before summer vacation started and the students were not in the right frame of mind to pay attention.  I did use this lesson with one of my advanced classes during summer vacation and they seemed to comprehend the message of the material.  I used the powerpoint to explain the concept of "Peak Oil" and then moved on to describe the vocabulary as well. As an introduction to the lesson and vocabulary I printed the paragraph with the missing blanks and handed it out to the students to complete.  Then i had them tell me some of the products that they knew were made of oil.  Then revealed the "Peak Oil" curve as a timeline proposed by M. King Hubbert in 1956 to predict the production capacity of oil.  There are many opposing views on the subject, some geologists disagree with the immediate presence of "Peak Oil" others feel that we are on the verge of a "Peak Oil crisis".  Then I ask the students to come up with ideas of how the world will change if we were to lose availability of oil, in groups they should develop a few ideas.  After giving the students time to agree in groups, they should present their perspective and then come to a consensus in class.  There are some videos online that I found illustrated the concept of "Peak Oil" pretty well. 


This is a challenging concept and something that the students are probably not very familiar with.  I think only advanced classes would be able to grasp the importance of this issue, so hopefully someone can find a use for this in their class.

Another thing which you could discuss with them is the oil spill which happened off the east coast of Korea about two years ago.  On or around December 7, 2007. Here are some links that might help in the future... your students will know exactly what this is and it gives them something that they can relate to in their own country. 
http://www.msnbc.msn.com/id/22140662/
http://www.time.com/time/world/article/0,8599,1693383,00.html
http://www.youtube.com/watch?v=EcixucSU5LM

I think this lesson is way too politicised and biased for school.

There are many opposing views on the subject, some geologists disagree with the immediate presence of "Peak Oil" others feel that we are on the verge of a "Peak Oil crisis". 

There are still others who disagree with the peak oil hypothesis entirely, and a growing number who do not even accept the assumption that petroleum is a finite resource at all. Sure, you could modify your presentations to include such views and avoid bias, but like you suggested, the material is complicated enough for many students to grasp as it is (I wouldn't blame the poor reception on entirely on summer vacation).
In the end, I think that if you're accepting that this is not the most suitable material for an English lesson but you want to get it in there anyway because you feel that it's important, you're simply not doing your job. You are a teacher, not a preacher.