Class Notes (834,026)
Canada (508,290)
Environment (894)
ENV100Y5 (713)
Lecture

Chapter 1- Introduction to Environment.docx

3 Pages
291 Views
Unlock Document

Department
Environment
Course
ENV100Y5
Professor
Monika Havelka
Semester
Fall

Description
September 9, 11, 13, 2013 Chapter 1 - Introduction to Environment Environment  “environ” to form a ring around or to surround  Environment: The sum total of our surroundings, including all of the living things and nonliving things with which we interact and includes:  Biotic: living things- animals, plants, forests, soils  Abiotic: nonliving things- continents, oceans, clouds, icecaps  Our built environment: road, buildings, factories  Social relationships and institutions  Governments, universities, cultures, etc  Environment Canada: The department of the federal government that is mandated to preserve and enhance the quality of the natural environment; conserve Canada’s renewable natural resources; forecast weather and environmental change; enforce rules relating to boundary waters; and coordinate environmental policies and programs  Legal Issues: The environment is a legal entity Natural Resources  Natural Resource: Any of the various substances and energy sources we need in order to survive  Two types of resources  Renewable/Inexhaustible Resources: (Stock-and-flow resources) A natural recourse that is virtually unlimited or that is replenished by the environment over short periods of hours to weeks to years o Sunlight, wind energy, wave energy, geothermal energy, soils, fresh water, etc  Non-renewable Natural Resources: A natural resource that is in limited supply and is formed much more slowly than we use it o Crude oil, natural gas, coal, copper, aluminum, and other minerals  Resource Management: Strategic decision making about who should extract resources and in what ways, so that resources are used wisely and not wasted  Aim: Balance the rate of withdrawal from the stock with the rate of renewal/regeneration  Stock: The harvestable portion of a resource Root Environmental Problems 1. Human population Growth  Paleolithic/Stone Age Period: Control of fire, use stones as tools to modify their environment  Neolithic Period/Agricultural Revolution: Transition from nomadic hunter gatherer to settled, agricultural way of life  Industrial Revolution: urban society powered by fossil fuels  Medical-Technological Revolution: Medicine advances, communication technologies, and shift to modern agricultural practices (Green Revolution) 2. Consumption of resources has risen faster than population  Total impact (I) on the environment = Population (P) x Affluence (A) x technology (T)  Carrying Capacity: The maximum population size that a given environment can sustain. When the carrying capacity of land/water system is exceeded:  Population of that species will decline or collapse  System itself will be altered, damaged, or depleted September 9, 11, 13, 2013  Tragedy of the Commons: The scenario in which each individual withdraws whatever benefits are available from an unregulated/poorly regulated common property resource, until the resource becomes overused/depleted  Enforce Private Ownership to allow landlords to be better environmental stewards  Ecological Footprint: (Inverse of carrying capacity) The cumulative amount of land and water required to provide the raw materials a person/population consumes and to dispose/recycle the waste that is produced  Bio-capacity: The capacity of a terrestrial/aquatic system to be biologically productive and to absorb waste 3. Poverty: people sell off their environmental assets in order to survive Environmental Science  Environmental Science: The study of how the natural world works, how natural resources and processes support life, and how humans and the environment interact  Environmental Science explores interactions between humans and physical and biological world  Encompasses biogeochemical-physical system in which people and other organisms exist  Dynamic interrelationships among organizations (including people) and their surroundings (physical chemical, biological, geological, social/cultural)  Emergent Properties: understanding is greater than a sum of the parts  Encompasses natural science (disciplines that study the natural world) and social sciences (disciplines that study human interactions and institutio
More Less

Related notes for ENV100Y5

Log In


OR

Join OneClass

Access over 10 million pages of study
documents for 1.3 million courses.

Sign up

Join to view


OR

By registering, I agree to the Terms and Privacy Policies
Already have an account?
Just a few more details

So we can recommend you notes for your school.

Reset Password

Please enter below the email address you registered with and we will send you a link to reset your password.

Add your courses

Get notes from the top students in your class.


Submit