Environmental movement
60 years ago people started to consider their impact on the environment.
Levels of influence of the environmental movement
individuals (such as Silent Springs)
Independent pressure groups (non-governmental organisations.
governments - policies, taxes etc.
intergovernmental bodies - United Nations
Historical events - Chernobyl
What is Silent Springs?
Novel written in 1962, highlighted the dangers of the pesticide DDT.
birds - caused brittle shells and bones, reduces reproduction and population.
humans - causes cancer, male infertility, miscarriages, low birth weight, developmental delay.
DDT was banned in the USA in 1972. Started the American environmental movement.
What is Chernobyl?
1986 when a nuclear reactor exploded, which changed lots of perspectives on nuclear energy.
Caused:
increase in mortality
decrease in reproduction
radiation sickness and contamination
changes made due to Chernobyl:
convention on nuclear safety - treaty developed in the aftermath of accident to promote safety of nuclear power reactors.
What is an ecocentric’s views
Earth is at the core of their values, they have a wish for sustainable living. Environment is more important than people.
What are the views of an anthropocentric?
People are the priority, resources are to be exploited, taxed etc should be used to sustainably manage the environment.
What are the views of a technocentric?
Technology-centred. Technological developments can solve problems, and they focus on economy growth more than the environment.
What is the systems approach?
a system is a set of interrelated parts to make a whole. It involves simplifying outputs and inputs and emergent properties.
1st law of thermodynamics
Energy cannot be created or destroyed.
2nd law of thermodynamics
Disorder (entropy) increases over time.
Equilibrium
returns to the original state after a disturbance. (2 types, stable and unstable)
What is a stable equilibrium
It returns to its original state / original equilibrium.
What is an unstable equilibrium
New equilibrium is created after the disturbance.
What is negative feedback
No change is made
What is positive feedback
Amplifies change
What can affect EVS’s
experiences
characteristics
background
education
culture and media