Greenhouse Farming

I have work to do for my course and I'm making posters about things.
The first thing I need to know is how the greenhouse effect has an impact on energy supply. And if possible does anyone know of a case study on the greenhouse effect?

The second thing I need to know is how to supply energy-intensive agriculture effects. And yet, if possible, is it a case study on intensive farming.

Thank you in advance for any help!

the only thing I know is that intensive farming requires a lot of energy and what is bad:) It will be easier to go here:) http://buyessay.org/