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environmental science
systematic study of environment (interdisciplinary, integrative, mission-oriented)
environment = surroundings
humans inhabit natural and social world
indigenous people
dying out, highly biodiverse, highly neglected
pragmatic conservation
george perkins marsh, “greatest good for greatest number for longest time,” usfs = jobs
moral and aesthetic
john muir (“lorax,” biocentric), “nature deserves to exist for its own sake”
modern environmentalism
rachel carson (slient spring), ddt and biomagnification, atomic weapons, fossil fuel issues, air and water testing
global concerns
increased tech increased global environmentalism
current conditions
human population over 8 billion, food shortage and famines in densely populated areas, water quantity and quality issues, fossil fuel and air and water pollution, landscape destruction and decreased biodiversity population stabilized in industrial countries, decreased life-threatening diseases, life-expectancy doubled
rich vs poor
rich - northern hemisphere, 1/5 population (>$25,000 per capita poor - southern hemisphere, about 1.4 billion people make less than $1 per day and gap is increasing
20:20 compact
1995 un summit for social development, ich countries would budget 20% to humanitarian concerns and social development, poor countries would budget 20% to human primary concerns (didn’t work)
hdi
human development index (happy scale), rich = low hdi, moderate equal wealth = high hdi - switzerland
sustainable
meeting the needs of the present without compromising the needs of the future
examples of sustainability
sustainable society, sustainable agriculture (no-till, strip farming), sustainable ecosystems, sustainable fishing
six r’s of sustainability
recycle, rot, reduce, repurpose, repair, reuse
sustainable development overlap
society, environment, and economics poor people cause and suffer the most from environmental degradation (forced to meet short-term needs, sacrificing the future)
tragedy of the commons
in a shared resource system where individuals will act in their own self interest, the moment you put laws and regulations, the moment it is not longer a commons. (ex. common land - each farmer wants to put more cows on commons for own benefit)
limiting factors
resources (overgrazing, overfishing, overpopulation, pollution, antibiotic resistance)
land is 29% of earth (133 million km squared)
29% forest and shrubland, 27% rangeland and pastures, 16% cropland, 33% other
william forster lloyd (1833
pamphlets overgrazing of cattle on common areas
garret hardin (1915)
argued that people were too selfish so commons would inevitably degrade
morals
distinction of right and wrong
values
ultimate worth of actions and things
environmental ethics
moral relationship between humans and surrounding environment
intrinsic
inherent innate worth or value because of existence, it deserves to exist for its own sake
instrumental
conferred worth or value because they are valued by someone who matters
moral agents
capable of acting morally vs immorally and who accepts responsibility for actions
moral subjects
not agents; moral interests and can be treated right and wrong
moral extensionist
who is considered ethically significant
universalists
plato, fundamental principles of ethics are universal, unchanging, and eternal
relativists
nietzsche, moral principles are relative to a particular person, society, or situation
nihilists
schopenhauer, morality is arbitrary, no reason to behave morally (we are all eventually going to die, so do whatever you want)
utilitarians
bentham and mill, an action is right that produces the greatest good for the greatest number of people
mineral king valley
1969, sierra club (trees, rocks, wildlife in sierra nevada mountains) vs disney (wanted to build ski resort), disney lost interest before supreme court ruled
biocentric
all living things have value/equal footing (buddhism, shintoism, taoism)
anthropocentric
human-centered (christianity, judaism, islam)
stewardship
custodian of resources, they feel life the guardians of nature (indigenous people)
ecofeminism
philosophers came from a patriarchial society based on domination and duality (exploitation of women and minorities and oppressed by men)
environmental justice
civil rights and environmental protection (black people have greater environmental health risks)
environmental racism
unequal distribution of environmental hazards based on race
toxic colonialism
targeting poor communities of color with waste disposal or experimentation with risky technologies
ecosystem service
environments provide life-supporting services: air, soil, land, water, well-being, food and water, strong economy, public health, land use, pollution, climate, policy
environmental indicators
describe the current state of the environment: biodiversity, food production, average global surface temperature and co2 concentration in the atmosphere, human population, resource depletion.
biodiversity
diversity of life formed in an environment, genetic, species, ecosystem
genetic diversity
measure of genetic variation among individuals in a population, increased genetic diversity = able to respond better to environmental change and damage
species diversity
number of species in region or habitat, group of organisms unique from others that can reproduce
food production and population
ability to group food to nourish human population, science and technology increased amount of food we can reproduce in land
greenhouse gases
in atmosphere and trap heat at earth’s surface, co2 is most important
anthropogenic
caused by humans
ecosystem diversity
measure of diversity of ecosystem or habitat in a particular region
increased human population
decreases amount of resources
finite not reusable resources
coal, uranium, oil
finite reusable resources
aluminum, copper
scientific method
observation and question, research, hypothesis (if, then, because), experiment/test, collect data and analyze (may lead back to observation), conclusion (yes = research, no = back to hypothesis), publish and peer edit
natural experiments
ideas that have been tested by historical evidence
models
physical mock-up
independent variable
scientist sets it (x-axis)
dependent variable
measured from the independent (y-axis)
constants
all the conditions are kept the same between trials
control groups
not manipulated, used for comparison
inductive reasoning
making general statements from specific facts or examples
deductive reasoning
applying a general statement to specific facts
scientific theories
hypotheses that have been test repeatedly
natural laws
theories that have stood test of time (undisputed, theory is tested and proven multiple times)
benchmarks =
collected data
quantitative
numbers
qualitative
characteristics/observations
replication
repetition of trials
sample size
number you’re using/measuring/testing (trials, people, hours, etc.)
accuracy
how close the measured value is to the actual value
precision
how close the measured values are to each other
environmental science’s unique challenges
no control planet, difficult to decide what’s better or worse, a lot of interacting parts, humans are the #1 concern/most important
poverty stat and implications
cause and suffer- world’s poorest people cause and suffer from environmental degradation, stuck in poverty and can’t get out of it
who is a pragmatic resource conservationist?
teddy roosevelt
how far back does it go?
well back in century (4th century B.C)
pinchot
first chief of the USFS