Livestock's Long ShadowLivestock's Long Shadow is an assessment of research, taking into account direct impacts of livestock production, along with the impacts of feed crop cultivation. The report states that the livestock sector is one of the top two or three most significant contributors to serious environmental problems. The findings of this report suggest that it should be a major policy focus when dealing with problems of land degradation, climate change and air pollution, water shortage and water pollution, and loss of biodiversity. Senior author Henning Steinfeld stated that livestock are "one of the most significant contributors to today’s most serious environmental problems" and that "urgent action is required to remedy the situation." 2006.