Natural Resource Depletion And The Sustainability Of Natural Resources

The global population is expected to reach 9 billion people by the year 2050 and scientific projections indicate that world is on a trajectory towards an environmental and global food crisis. World Leaders, environmental enthusiasts and aid agencies have cause for alarm as they support urgent policies for change, for without them mankind will face unprecedented food insecurity. In 2015 estimates were that there were “some 795 million people” [World Food Programme, 2015], experiencing food insecurity and 3.1 million children under 5 died through malnutrition, while Australians continue to waste an estimated 361 Kg’s of food per person per yr [PMSEIC, 2010, p.44] All the while the earth groans under the weight of Greenhouse Gas Emissions [GHG], deforestation, soil degradation and

The transition from the traditional hunter gatherer societies, in to an agriculture based living system, has allowed humans to increase their population size, putting strains on the Earth’s environment. Agriculture has also brought along with it a decrease in women’s roles in the community, while also bringing about a class system where the wealthy rule, and were the weak and poor obey. As humans began to domesticate more plants and animals, they settled in permanent areas. The Change from hunter gatherer benefited few, but had dire consequences for the earth and groups with in it. One such consequence was the population increase, which has lead to major issues throughout history, and one that has ties to current global issues.

Over the next forty years, global population is expected to reach nine billion people. This increase in population, combined with expected economic growth, will cause an increase in food demanded and inevitably drain the resources we use for food production. So far, agriculture has been able to respond positively to the rising demand for crop and livestock products. However, farmers are already faced with many new challenges associated with feeding an expanding global population. Farmers must now meet strict new emissions requirements and produce more food on fewer acres while minimizing their environmental footprint. The demand for food is expected to grow substantially in the next couple decades. Some of the factors affecting an increase in food demands are population growth, rising incomes of individuals, food supply factors, and biofuels.

The message of the Millennium Ecosystem Assessment’s Governing Board is that human impacts on this resilient natural world are so unprecedented and extensive that we crossed the line into unsustainable consumption some time ago and are now depleting ecosystem capital stock instead of living off its sustainable goods and services.

Forests have been cut, crops planted, pastures seeded, and urban areas paved. One of the most troubling consequences of human modification of ecosystems is an ongoing loss of species and therefore a loss of biodiversity around the world. The current extinctions have a human cause: habitat loss (such as clearing of tropical rainforests); the introduction of invasive species; unregulated hunting and fishing; and pollution of water, air, and

The worlds biomes at the moment are unable to feed the growing global population in the future. They might be able to feed the population now but as the population grows we need to increase the worlds agriculture to provide enough food to feed the growing population. In order to feed the growing population, the world needs to put into action some simple steps to increase food production and to reduce wastage from existing food.

Since the Industrial Revolution we have practiced deforestation, burned fossil fuels, and as a result we have disrupted stable ecosystems. Advances in medicine and technology have given humans the ability to increase their carrying capacity. While increasing our carrying capacity we have also decreased biodiversity around the world. We have introduced different species in new environments to help ourselves

The link is to a report, titled Ecosystems and Human Well-Being, A Report of the Millennium Ecosystem Assessment. The report covers ecosystem changes and how that is intertwined with humans and their well-being. The ecosystems of the earth are complex and have many variables. Human actions can have a significant impact on these ecosystems and the report aims to seeks and apply scientific analysis and reasoning to how human actions have and need to change to support these diverse ecosystems focusing on sustainability.

The current global population of 7.6 billion people is expected to reach 11.2 billion in 2100 (UN DESA), and as the Earth’s population continues to grow exponentially, the topic of environmental sustainability is being debated with increased urgency. In the past few years, many large-scale environmental issues have emerged due to human activities: climate change, air and water pollution, rising sea levels, habitat loss, species extinction, and worsening natural disasters are all becoming more and more prevalent. But perhaps our most immediate concern should be whether or not we will be able to continue feeding this ever-increasing population.

Adequate availability of resources, such as food and water, are only available to a limited population, and the way of life of humans is often at the expense of other species and natural habitats. Also, in 3 to 4 decades an extra 2 billion people will be living on Earth. This means food production must rise by 60%.

Biodiversity is the variety of plant and animal life in the world or in a particular habitat, a high level of which is usually considered to be important and desirable. Slowly the Earth is changing because of climate change and biodiversity is very important now to ensure that a rapid loss of animals doesn’t affect the way the world will grow in the future. In this report the issues of extinction will be discussed along with an example of an extinct animal called the Diprotodon optatum. Sustainable practises, such as recycling, help to prevent the extinction of animal and plant life all over the world. This essay will argue that the prevention of extinction of animals is essential to ensure that the biodiversity of the Earth is sustained.

to be grown trees have to be cut down and I have explained the effects

In addition, biodiversity will be crucial for humanities continued survival in the case of climate change or widespread crop failures. The majority of people on earth are reliant on four crops for subsistence; wheat, rice, corn, and millet. (11) These crops are threatened by climate change and the spread of disease facilitated by modern transportation. If humanity is to survive such an eventuality it must be ready to draw upon the earth’s biodiversity for replacements. And while there are approximately 50 thousand plant species that could offer alternatives, this bank of resources is quickly thinning as various ecosystems are being destroyed. (11)

Humans have existed since 200,000 years but the Earth has existed around 4.5 billion years. Nature has provided us with everything we have today - food, medicines, materials, chemicals, metals, minerals etc. It can only keep providing us when we maintain the right environment for it to exist. This environment depends on the biodiversity of Earth. The number of species of plants, animals and microorganisms and the various genes in these species, different ecosystems such as deserts, rainforests and coral reefs are all part of a biologically diverse Earth. Hence Biodiversity impacts everything. We will discuss how Biodiversity plays a crucial role on social, environmental, and economic factors. We will also discuss what

The health of the earth degrades with the destructive activity of human beings. A recent study by a group of scientists looked at twenty four different services that the earth’s ecosystems provide for humans, ecosystem services, and found that fifteen of them are in need of desperate help (Gazette 31 March 2005). These services are vital to the survival of both human and nonhuman life and include filtering water and providing nutrient rich soils and ocean waters. Many of the members of these various ecosystems are also decreasing in numbers. In a British survey of bird populations found that in the 200 birds of Britain tracked there was about a 54% population decrease between the 1968-1971 tacking period and the 1988-1991 tacking period. In two other surveys of 254 native plant species from the same area there was a decrease of about 28% during the past 40 years. Humans are pushing the sixth mass extinction (Gazette March 19, 2004).