The following articles focus on the Great Barrier Reef, and in particular the massive negative impact of cattle grazing in its catchment areas. The articles can also be found in the section dealing with climate change and animal agriculture.
Some impacts of cattle farming
Beef and the reef: A recipe for disaster
xxAYCC grossly understates livestock’s climate change and reef impacts
Meat Eaters vs the Great Barrier Reef
Beef, the reef and rugby: We have a problem
The issue was also addressed in my 2008 submission to the Victorian State Government.
Featured image: Rob D the Baker, Shutterstock ID 362644586