Flashcards in Ch 1 Deck (37)
What is ecology?
The study of species and their interconnection in the environment
What is environmental science?
The study of the earth and our interactions with it to deal with our problems
How do beavers severely interfere with the environment?
How do we live off of interest in the envirpent?
As we take resources, the yields decrease
What is carrying capacity?
The amount of people the earth can hold. The number one issue is food. We've exceeded the capacity of earth
When did we exceed the carrying capacity?
The agricultural revolution
Why did we used to travel in tribes of 30-40?
It was the only feasible way because of the carrying capacity
How long would we last if we went back to a hunting/gathering system?
Why is population growth expected to slow?
More people are having less kids because of the empowerment of women
How did the industrial revolution raise population?
The growth of technology raised the life expectancy and boosted the population
What is GNP?
Gross nation product
What is GDP?
Gross domestic product.. Our inside value of all goods and services
What is the GWP?
Gross word product.. GDP for the world
What is per capita GNP?
The average gnp
What is good about developed nations?
Less pollution, more goods/less resources, more food, higher life expectancy
What is bad about less developed nations!
Life expectancy and pollution lag, unsustainable resource use, the population competes with wildlife, self inflicted climate change
How does economics influence everything?
It is interconnected in the world
How has the Internet influenced interconnection?
Communication is easier and there is nowhere left to wxplore
How has interconnection influenced the environment?
Species and their diseases are being transported
What is perpetual energy?
Constant renewable like solar and wind
What is renewable energy?
Stuff that is replenished somewhat rapidly like trees, soil, and fresh air
What are nonrenewable resources?
Fossil fuels, metals, and minerals
What is a sustainable yield?
The highest rate at which a resource can be used without reducing its available supply
What is environmental degradation?
Exceeding the sustainable yeild
What is the idea behind the tragedy of the commons?
If I don't use it, somebody else will
What is succession?
The growth process from rocks to moss to soil to shrubs and so on
What is the debate with free access resources?
Should we sell the land or lease it? We go with sell because they take better care of it
What are the 2 types of pollution?
Anthropogenic and natural
What are the pollution sources?
Point and nonpoint. Nonpoint is more of an issue today because of regulations
What did the 1972 clean water act do?
Banned point source pollution and no more DDT/dioxine
What is input control?
Preventing pollution by banning pollutant production. This is the best meghod
What is cleanup/output control?
What impact do organic pollutants have?
More of an immediate impact but they go away faster
What are the environmental and resource problems?
Rapid population growth, unsustainable resource use, poverty, not including environmental costs in goods, simplifying things with too knowledge
What is environmental wisdom?
Nature is in charge, resources are limited, development is bad, we need to learn how the earth interacts with nature
What is planetary management?
We are in charge, there is always more of something, benefit the economy, we manage earth for our benefit