I caught the end of something on TV so it caused me to do some investigation.
www.nature.com
There is a vegan whom I know who keeps on about getting rid of cattle to "save the world". I keep on saying that it is more complex than that as we would have to replace cattle with something which might turn out to be worse. I knew vaguely that grass is a carbon sink and this goes some way towards my suspicions being at least partially right.

Grassland plants show surprising appetite for carbon dioxide
Results from a long-running field experiment suggest that a major group of plants could thrive as the level of carbon dioxide in the atmosphere increases.

There is a vegan whom I know who keeps on about getting rid of cattle to "save the world". I keep on saying that it is more complex than that as we would have to replace cattle with something which might turn out to be worse. I knew vaguely that grass is a carbon sink and this goes some way towards my suspicions being at least partially right.