Overshooting Ecological Resources Worksheet Answer Key

Overshooting Ecological Resources Worksheet Answer Key

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The ecological footprint accounts for the entire human demand on the Earth’s resources, including materials, energy, and water. When total human demands exceed the planet’s capacity to renew, the output of natural ecosystems is said to be in ecological overshoot (Scheffer, 2011). The ecological overshoot concept covers the following dimensions: The magnitude or degree of overshoot; the rate of resource depletion; the types of resources required; and the locations of demands. The magnitude of the Earth’s ecological footprint may be calculated as the area within a circle of ecological capacity that is required to support the demand in question. This is basically a quantitative mapping of human demands on nature. The ecological footprint (EF) concept can be used to characterize the amount of

resources that are consumed to support human activities on Earth. It is used to describe the gap between the resources that are required and those available to the ecosystem, and it provides a metric to indicate the ecological state of a system. An ecological footprint is a measure of an individual's or population's consumption of the Earth's resources. It is an indicator of human impact on the environment, an indicator of the consumption of resources, and a measure of ecological sustainability (Polasky and Bierman, 2008; Smith, 2014). There are two main types of footprint: ecological footprints and ecological capacities (EFCs). EFCs can be thought of as the baseline level of resources that the planet could provide. This concept captures the amount of resources in the biosphere that are available to meet all of our needs (an EFC is a maximum sustainable yield) and is an indicator of the capacity of the planet to meet current and future demands. Ecological capacities cannot be exceeded (Smith, 2014).

A large global EFC is represented by the blue area in Fig. 3.1 (Polasky et al., 2004). The EFC is the maximum amount of regenerative resources (or natural capital) that the planet can provide to support human life. This concept describes the amount of resources that can be provided by nature to support the complex socio-ecological system that is now, and will likely be, in existence for the foreseeable future. This concept is a measure of the planet’s ability to provide the resources needed to support life. The blue area in Fig. 3.1 represents the EFC of the planet Earth. The blue line represents the actual EFC at any time as measured by researchers (Polasky et al.

For countries like Pakistan, the economy is too dependent on the extraction of the primary resources. The country has to address the energy crisis. It has to adapt to the changing conditions related to climate change. The sector has been facing a lot of challenges and the resources have been at a risk of depletion. At the same time, it has to meet the economic objectives.

•“Risks-Sharing”: All countries would share the impact of extreme events, because they would be catastrophic for the common good. The main problem is that they would also be risk-sharing opportunities for a few countries and corporations to reap the benefits of extreme events, for example, to profit from disasters and to consume at will increasing amounts of water, electricity and fuels to develop. The climate-related risks that will increase in the future should not be mitigated only by adaptation, but also by equitable redistribution of the limited resources for adaptation. It is time to think about the redistribution of risk and the fair sharing of the consequences of extreme events. 827ec27edc