Overgrazing

term survival of mankind. The Tragedy of Commons is a very real problem, manifesting itself in everyday lives via different channels. Non-renewable resources being continuously depleted owing to their over-exploitation by mankind, overpopulation, overgrazing of grasslands, are some examples of the tragedy of the commons in action. Fisheries provide another relevant example of the tragedy of the commons, occurring when faced with incomplete property rights and open access to a resource. It has…

They damage the habitats and they remove many species without giving the ecosystem some time to naturally generate. When humans hunt for marauders like lions, tigers, wolves and bears, they remove the herbivores consumers in balance and prevent overgrazing. A healthy ecosystem has a balance of marauders and prey that naturally cycle through life and death. Hunting above a level usually spoils the balance of ecosystem species and environmental stress. Humans also use to practice overfishing,…

2.3 Conservation 2.3.1 Drivers of biodiversity loss Biodiversity is subjected to numerous forces that threaten the loss of species and the depaupering of natural resources (Brand et al., 2008). Biodiversity loss drivers (mechanisms that influence the extinction of a species) are generally encompassed in (but are not limited to): environmental stress, large environmental disturbances, extreme environmental conditions, severe limitation of resources, the introduction of non-native species, or…

one source for air purification, taking in carbon dioxide only to expel it in the form of fresh, breathable oxygen. Unfortunately, this weapon is quickly being torn away by the destruction of trees caused by agriculture, logging, forest fires and overgrazing (mostly human or man-made causes), the most harmful cause being agriculture [National Geographic, 2016]. When we destroy our forests the carbon absorption carried out by those trees ceases to exist entirely. Not only is that an issue, but as…

Lauren Trahan Mr. Jennings World Geography (H) -2nd 8 December 2015 Ethiopia Dossier Ethiopia’s Political History From AD 100, the city of Axum, north of Ethiopia, rose to power. The Aksumite kingdom became the most powerful in the region; their empire ran from the Nile River across the Red Sea. In the fourth century AD, a king named Ezana came to power and made Christianity the official religion. From AD 750, the rule of Aksum began to decrease as Arab traders spread across Africa,…

World hunger is undoubtedly one of society’s most (formidable?) issues today. According to Oxford Dictionaries, hunger is “a feeling of discomfort or weakness caused by lack of food, coupled with the desire to eat. ” We are able to produce more than enough food to feed our large population, yet over 800 million people around the world, or one in nine, do not have enough food to eat. Developing nations __ hold the vast majority of 98% of the world’s undernourished people; however, there are some…

The fight for animal rights is not a new subject, in fact it has been around since 19th century England. Organizations such as the SPCA (Society for the Prevention of Cruelty to Animals) were established back in 1866. While basic animal rights may be in place, ethics in some places may still be questioned but we have come a long way in terms of animal rights as a whole. It has protected many species from extinction, but what is left to be done? With factory farms and laboratory experiments it is…

The topic of government and economy within the west has intrigued historians for decades. Many questions have been raised in regards to the ethics involved when settling the west, and how our country would differ if those series of events were handled disparately. When the settling of the west occurred, the ideology of the settlers was along the lines of: “ride forth my son and stake your claim for God has determined it”, otherwise known as manifest destiny. This mindset is the reason the…

Conflict over Dams: Connections Between ‘The Tragedy of the Commons’ and DamNation Ben Knight’s DamNation depicts a conflict between Earth First! activists, hydroelectricity companies, Native Americans (particularly the Elwha tribe), and the federal government. The conflict is over several finite resources such as the salmon population, hydroelectric power, and ecosystem health. The purpose of this paper is to demonstrate that the conflict represented in the film is a clear example of the…

Water is the key element to support the life and preserves natural ecosystems on earth. In the history of civilization water plays an important role for the establishment of habitat and also for expansion of trade. Most of the towns and cities were developed near sources of drinking water and along rivers for transportation. Mesopotamia was situated between the major rivers Tigris and Euphrates and the ancient society of the Egyptians depended entirely upon the Nile for agriculture productivity.…