Total methane emissions from both dairy and meat cattle represent 14.5% of global anthropogenic greenhouse gas emissions. To mitigate climate change, it is necessary to create solutions to reduce methane emissions from cattle. For long-term solutions, scientists are focusing on increasing feed and production efficiency via genetic selection, as producing the same amount of milk or meat from a smaller herd of cattle will reduce methane emissions. In the short term, there has been a recent surge of studies exploring dietary supplements that could reduce the emissions of cattle in existing commercial farms. This article will primarily focus on the emissions produced by dairy cattle, including in vitro experiments and in vivo feeding trials.

In schools across the United States, teachers are teaching subjects such as arithmetics, the Revolutionary War, Shakespeare’s plays, and, more recently, climate change. However, not all teachers teach climate change, and the ones who do may be teaching it wrong.

In this age of reinvigorated populism, it is easy to forget that with the ever-expanding population of humans that exist across the planet, we face more than a handful of problems that threaten the longevity of our species. Due to climate change, sea levels have risen and the oceans are warming. Around the world, our seas have been forced into a state of acidification due to ...