Meat or no meat?

As a native Brazilian who strictly follows the tradition of going to Porcão once a week or having a nice barbecue at my house on a sunday afternoon, giving up meat seems outrageous. The facts presented by vegetarian scientists, who are clearly biased, indicate that the production of meat accounts for 18% of the greenhouse gas emissions, whereas all the world's cars, trains, planes and boats account for a combined 13% (http://www.time.com/time/health/article/0,8599,1839995,00.html). Considering that these numbers are true, they represent a need for change coming from the producers of meat not from the consumers. 
Companies need to start raising cattle in an organic pasture, which raises the cattle in a way that "all ruminants must have access to pasture ... and, pasture must be managed organically using strategies that improve soil and water while increasing the nutrient value of the pasture." (According to howtogoorganic.com). It is unfair that we have to give up on a complement that has become a significant part of our diet and that is necessary for a good health and a pleasurable life. This idea that meat leads to global warming is nothing but merely an attempt by the vegetarians, to have the world stop killing the animals. But, the truth is, our world has become carnivore, and giving up this right is not something that a lot of us are willing to do. If the concern is really with the environment as they say, why not tackle the companies and demand their effort to creating less polluting means of growing these animals? Why is it that the consumers have to change their lifestyle? 
Before they can ask us to stop eating meat, they need to ask the companies to stop polluting, the truckers to stop working, the houses with fireplaces to stop lighting fires, the dry cleaners to stop working, the chef to stop cooking. All of these actions, that even though may be harmful to do the environment, have become part of our lives pollute to a certain extent. It is unacceptable that they ask the consumers to stop eating meat while allowing these companies to pollute to such an extent. 
Obviously, I understand that global warming is here, and it is scary and intimidating. But at the same time, it is unfair that the consumers pay the price for the wrong doings of the companies. Strict laws and regulations should monitor the growing of cattle and the meat should only be certified if it comes from an organic pasture. With that, both consumers and vegetarians will be happy. To conclude, I would like to emphasize that the question here is not whether you are a vegetarian or not; but rather a question of unfairness. What we have to learn from this blog is that companies need to change their ways, not the consumers.