Unit 1 Flashcards
Environment
All the living and non living things around us
Biodiversity
The cumulative number and diversity of living things
What is the environment consisted of
Animals, plants, forests, farms
Continents, clouds, ice caps
Structures, urban centers, living spaces
Social relationships and institutions
What have natural systems been degraded by?
Pollution.
Soil erosion
Extinction
Environmental science
The study of how the natural world works and how the environment defects humans and vice versa
Natural resources
Substances and energy sources needed for survival
Ecosystem services
Arise from the normal functioning of natural services
Examples of ecosystem services
Purifying air and water
Cycles nutrients
Regulate climates
Pollinate plants
How do humans degrade ecosystem services
Destroying habitat
Generating pollution
How many humans are there on earth
6.9 billion
What is the agriculture revolution
The mass increase of crops and livestock..created stable food supplies and increased the general pop
What was the industrial revolution
Urbanized society with fossil fuels. Discovered sanitation and medicine as well as pesticides and fertilizers
Concept of tragedy of the commons
Exploitation of public resources to depletion for personal gain
Three solutions to tragedy of the commons
Private ownership
Voluntary organization to enforce responsible use
Gov regulation
What increase consumption
Affluence
Ecological footprint
The environmental impact of a person or population
Overshoot
Humans have surpassed the earths capacity to support us
How fast are we using renewable resources
30% faster than they are being replenished
Examples of fallen civilizations after degrading the environment
Easter island
Greek and roman impires
Iraq
What does environmental science do for the world
Create a better one because civilizations thrive on how well the interact with the environment
What is environmental sciences main goal
To solve environmental problems
All solutions are applications of science
Two interdisciplinary fields
Natural sciences
Social sciences
Natural sciences
Examines the natural world
Environmental science programs
Social science
Examines human values and human behavior
Environmental studies program
What does environmental science pursue
Knowledge of the environment and our interactions with us while trying to remain free from bias
Environmentalism
A social movement that tries to protect the natural world from human caused changes
Science
A systematic process for learning about the world and testing our understanding of it
Why is science so important
It is discovering a safe pathway
Develops solutions to problems we face
Sorts fact from fiction
Example of policy decisions and management practices
Restoration of forest ecosystems altered by humans
Example of scientific techno colony developments
Energy-efficient cars
Observational science
Infor gathered about organisms, systems, processes
What question does observation science pose
Why is it why it is
What studies use observational science
Astronomy
Paleontology
Taxonomy
Genomics
Hypothesis driven science
Targeted research testing a hypothesis with the scientific method
Quantitative date
Uses numbers
Qualitative data
Does not use numbers
Order of scientific method
Observation Questions Hypothesis Predictions Test Results
Manipulative experiments
Strongest evidence
What do manipulative experiments reveal
Causal relationships
Natural tests
Real-world complexity
What is being applied in natural tests
Laws of nature
Scientific process
Guards faulty research
Peer review
Publication
Competition for funding
Theory
Well tested and widely accepted explanation
Paradigm shift
A dramatic upheaval in thought
Wicked problems
Complex with no simple solution
Sustainability
Living within planets means
Natural capital
Esther’s total wealth of resources
Mehta is special about the U.S. and income
The richest 1% have 25-% of all income
How much of land is used for agriculture
Half
How much has carbon dioxide emission risen since the industrial revolution
39%
Millennium ecosystem assessment
Assessed the consequences of ecosystem change for human wellbeing
What did the MEA report
Humans have altered ecosystems
These changes have contributed to human well being but at s cost
Degradation could get worse
Could be reversed
How much of the worlds oil supplies have we used
Half
Cornucopians
Human interfaith will solve any problem
Cassandras
Predict doom and disaster
Sustainable development
The use of resources to satisfy current needs without compromising future availability of resources
What does sustainable development satisfy
Doesn’t compromise future availability
Never increases in economic size
Values environmental protection
Human made capital cannot sub natural capital
Triple bottom line
Sustainable solutions that allow environmental protection, reach economic goals, and social equity
What turns water into steam
Hot rocks underground
The geysers
Northern Cali
Electricity for millions
What replenishes depleted steam
Wastewater
What may cause earthquakes
Extracting steam
Chemistry
Studies types of matter
How is Chem crucial
How fades contribute to climate Pollutants and acid rain Effects of health of wild and people Water pollution Wastewater treatment Atmospheric ozone depletion Energy issues
Matter
All material in the universe that has mass and occupies space
Law of conservation of matter
Matter can be transformed from something into others but cannot be destroyed or created
Why does the law of conservation matter make sense
The amount of matter stays constant
It is recycles in nutrient cycles and ecosystems
Fundamental type of matter
Element
Smallest components that maintain chemical properties
Atom
What does the nucleus contain
Protons and neutrons