Cow "emissions" more damaging to planet than CO2 than cars and planes

I found this article about how the gas from cows can do more damage to the ozone layer and the plant itself the the CO2 from cars, planes or anything else that produces CO2. Its because the herds of cows are growing rapidly and they are responsible for 18 per cent of the worlds green house gases the cause global warming. The result of this is that with the CO2 being produced from the cars and planes and the gases that the cows are putting into the air there will not be enough plant life to get the CO2 out of the air. Water pollution is also a problem that is caused by this because the waste from feedlots and fertilisers used to produce their feed and then weeds choke all other plant life. And the antibiotics, hormones, and pesticides used to treat them get in to drinking water and threat human life. This relates to the culinary industry because the gas breaks down the ozone layer which means that it gets thin enough the sun wil get through and kill everything, and the water pollution will mean that we will get sick every time we need water, and the animals will die from it or get sick. No animals no food.