Grazing Animals and Greenhouse Gases

To me, there is logic in raising grazing animals to convert inedible rass to edible and nutritionally needed protein. the grazing animals also help to manage and enhance the grassland.  becausw thw animals emit greenhouse gasses, they are seen as part of the climate problem.  In the article, "The role of ruminants in reducing agriculture’scarbon footprint in North America." researchers use existing literature to conclude that the benefits of grazing animals to the environment and to human nutrition far outweighs their negative impacts in a well managed grazing program.