Chap 1 - Issues, Trends, Impacts and Perspectives Flashcards
Issues, Trends, Impacts and Perspectives
Two sustainable development key concepts are… (from Our Common Future)
- Concept of “needs”, in particular, the essential needs of the world’s poor, to which overriding priority should be given
- The idea of “limitations” on the environment’s ability to meet present and future needs imposed by the 1) state of technology and 2) social organization
Financial capital
Cash, investments, and monetary instruments
Infrastructure, machines, tools, and factories
Manufactured capital
Labor and intelligence, culture, and organization
Human capital
Natural capital
Resources, living systems, and ecosystem services
Community capital
All the natural, human, social and built capital from which a community receives benefits and on which the community relies for continued existence
Economic model that highlights the relationship between society and the ecosystem expressed in economic terms.
Decision-makers consider the Earth’s carrying capacity and the risks associated with the limits to growth
Natural capitalism
Four central strategies of ‘natural capitalism’
1) Radical resource productivity
2) Biomimicry (emulation of the models, systems, and elements of nature for the purpose of solving complex human problems
3) Service and flow economy
4) Invest in natural capital
A view of sustainable development that sees nature as having “critical” elements—conceptualized as ecosystem services—that uniquely contribute to human wellbeing. As “critical natural capital,” maintaining nature’s ecological functioning is required if society will continue to provide for the needs of future generations.
strong sustainability
A view of sustainable development that assumes natural capital and manufactured capital generate the same level of wellbeing to society. Proponents of this view believe that sustainability can be achieved for future generations by maintaining or increasing the aggregate value of all capital stocks.
weak sustainability
This gas, composed of three atoms of oxygen, occurs both at ground level and in the upper atmosphere. In the upper atmosphere, it protects the Earth’s surface from harmful UV rays. When found at lower levels, it is a volatile organic compound (VOC), created through chemical processes, which can be harmful to human health. The Montreal Protocol agreement set regulations to curb the use of compounds that produce this gas.
Ozone (O3)
While weather refers to atmospheric conditions over short periods of time, climate is the long-term behavior of the atmosphere—an accumulation of weather over time. Although daily weather may appear relatively constant, incontrovertible scientific data shows that Earth’s climate is changing. The result is an increase in severe weather events, drought, changes in ocean chemistry, and rising tides.
Climate Change
This refers to the deep ocean currents that are driven by differences in water density, which is controlled by temperature and salinity . As glacier ice forms, the salt precipitates out into the surrounding seawater making it saltier and denser, causing it to sink. As this saltier water sinks, the fresh surface water drawn in to replace it also becomes salty—eventually sinking as well. The resulting deep ocean currents circle the globe in a kind of conveyor belt.
Thermohaline circulation
These are formed through the process of anaerobic decomposition of buried plant matter, which gradually transforms into minerals—including petroleum, natural gas, and coal. Because they consist mainly of hydrogen and carbon, they are also referred to as hydrocarbons. When excavated and burned to produce energy, the sequestered carbon gets released back into the atmosphere. Because the production process takes millions of years, these fuels are considered nonrenewables.
Fossil Fuel
Any positive benefit provided by an ecosystem. Four major categories of these were identified by the Millennium Ecosystem Assessment (MA): Provisioning (e.g. food, water); Regulating (e.g. pollination, carbon sequestration); Cultural (e.g. recreation, inspiration); Supporting (e.g. photosynthesis, carbon cycle).
Ecosystem services
This global initiative, that focuses on “making nature’s values visible,” aims to bring ecosystem service and biodiversity issues into mainstream decision-making practice
The Economics of Ecosystems and Biodiversity
full range of life forms on Earth—their species, genetic, and ecological diversity.
biodiversity
Limits to the availability of
natural resources, including ecosystem services. Published by the Club of Rome in 1972, this was a controversial paper, authored by a team at MIT, working under Jay W. Forrester.
Limits to growth
Various combinations of reinforcing and balancing feedback loops that commonly occur in systems. They include: Fixes that backfire or fail, Shifting the burden, Limits to growth or success, Tragedy of the commons, Accidental adversaries, Escalation, Drifting or eroding goals, Success to the successful, and Growth and underinvestment.
Systems archetype
Positive feedback loops, and generate exponential growth or collapse at an increasing rate. This runaway behavior strengthens with each iteration.
Reinforcing loops
The maximum population that can survive indefinitely on the available resources and services
carrying capacity
1 - Conceptual model used to describe the relationship between the three main drivers of humanity’s Earth impacts—population, affluence, and technology.
2 - Developed by Paul and Ann Ehrlich of Stanford University, this model suggests that humanity’s impact on the systems that sustain our existence can be approximated
IPAT Equation
- I = society’s negative impact on the ecosphere
- P = population size
- A = affluence of average individual (consumption)
- T = technology and services driving consumption
Energy that is available to all people—both today and in the future. Having the capacity to provide this requires a strong infrastructure, deriving fuel from renewable sources, and practicing energy efficiency.
Sustainable energy