Overgrazing

Attn Grabber: Significant climate changes in physical and biological systems on all continents and most oceans. Id. Prob: Is climate change natural or caused by humans? Map Background: High carbon dioxide levels, permafrost is warming, lots of methane, temperature increase in the North Atlantic Ocean since 1970. Thesis Stmt: Climate change is caused by humans. Reason 1: CO2 emissions are way too high. Evidence 1: Since 1960 CO2 has steadily been increasing in the atmosphere, which has caused the…

Pro-Environmentalism Commission for Environmental Cooperation. "The North American Mosaic: An Overview of Key Environmental Issues." The North American Mosaic: An Overview of Key Environmental Issues, June 2008, pp. 7-10., www3.cec.org/islandora/en/item/2349-north-american-mosaic-overview-key-environmental-issues-en.pdf. This article discusses climate change and its impact. The climate is being disrupted by natural internal processed, external forcings, and human activity and the impacts have…

The Murray Darling Basin The Murray Darling Basin is situated in Australia, it is one of the largest river systems in the world, it is divided into the northern basin (Darling system) and the southern Basin (Murray system). The Basin serves a significant role in supporting a wide range of native and introduced species of plants, animals and ecosystems. Currently salinity management is one of the most important environmental challenges facing the Murray-Darling Basin. If the salinity is not…

Social systems make up the society in which everyone lives and there are different types of them that have different environmental and societal impacts. The first, and the most, seen system in world history is called the hunting and gathering society. Hunting and gathering was just that, they found and killed their own food on a daily basis, as well as using other parts of nature for medicine and tools. The people in these societies have a profound knowledge of environment because they rely on…

the knowledge, skill, attitudes, motivation and commitment to work individually and collectively towards the solutions of current problems and prevention of new ones”(UNESCO UNEP IEEP Environmental Education Series6,1990). The need of the time is to make people sensitive towards nature through a strong programme of environmental education. It is a way of creating knowledge, understanding values, attitudes, abilities, skills and awareness among individuals and social groups towards the…

The Mexican wolf is the southernmost subspecies of gray wolf in North America, its natural habitat was that of the southwest United States and Mexico, Texas, New Mexico and Arizona as their home range in the US. (Rinkevich, Murphy, & Barrett, 2011). The gray wolves were a menace to rancher’s cattle and farmer’s livestock. Depredation of livestock led ranchers and state governments to declare war on the Mexican gray wolves through public and private bounties. The Mexican gray wolves were…

ecosystems, species depend on each other for survival. Herbivores depend on certain plants to reproduce for them to eat and survive each year. These same plants count on carnivores to kill herbivores, so that the plants do not become endangered due to overgrazing. The carnivores also depend on the plants to reproduce so there are more herbivores to eat. So what would happen if one of these important factors were removed from an ecosystem? According to Ripple, Beschta, Fortin and Robbins, in the…

When you hear the word permanent, what do you think about? How about if you hear the two words permanent destruction, do you hear a ringing in your ears just from those two words? Do you ask yourself, what are the consequences from permanent destruction? Well, when I think of permanent destruction of forests, I come into realization all that’s at stake. According to Alina Bradford, a Live Science contributor, states “An estimated 18 million acres (7.3 million hectares) of forest, which…

From both human contributions and natural sources, our planet is constantly changing. New scientific discoveries with the potential to save lives are occurring, new technology is making it increasingly common to have communications with people and groups across previously uncrossable boundaries, and humans are constantly breaking records and norms to challenge what we believe is possible. The world is not an inherently bad place, but we have our problems. While we are accomplishing all of…

Environmental History is the study of human interaction with the natural world over time. Environmental history is a rather new discipline that came into being during the 1960’s and 1970’s. It came about as a direct consequence of the growing awareness of worldwide environmental problems. Some of important practitioners of environmental history are Donald Worster, Christian Pfister, and Peter Brimblecombe. Environmental history works by emphasizing the active role nature plays in influencing…