Paraphrasing is putting the words of somebody else into your own words in order to integrate sources into your own work. When you need to paraphrase you need to reference, however, you do not need to use quotation marks. You will need to make sure you capture the meaning the author of the source is trying to convey. Paraphrasing is a way of demonstrating that you understand what you have read.
The sources of greenhouse gas emissions are also more diffuse than that any other environmental problem. Every company, every farm, and every household emits some greenhouse gases. The impacts are similarly pervasive. Agriculture, energy use, health, and nature are directly affected by the weather, and this, in turn, affects everything and everyone.
All levels of society are contributors to climate change, from the individual family home to big business and industry, they all emit "greenhouse gases", everything on earth affects each other and everyone (Tol, 2008).
Note. This paraphrase captures the meaning of the original paragraph. You will notice that there is no page number needed for the reference, the last name and the year of publication are needed.
Tol, Richard S. J. (2008): The economic impact of climate change, ESRI Working Paper, No. 255, The Economic and Social Research Institute (ESRI), Dublin https://www.econstor.eu/bitstream/10419/50039/1/584378270.pdf