Iscuss why Hybrid Cars are negative to the Envirornment

This is a 7 page research paper on the topic of the Negativesof Hybrid & Electric Vehicles. The professor requires a 3 or 4 point thesis statement in the introduction, with the rest of the essay following closely to that thesis. The professor has also requested at least one of the sources to be a Physical sourcesuch as a book, newspaper, etc.
Sources should be academic and scholarly, please try to include a couple quotes per page from the sources. If possible, try to bring up the Benefitsof the hybrid & electric cars, but show why they should be ignored (shoot them down.)
If you have any questions about the topic & paper please feel free to contact me at any time of the day.
Thanks.