Lecture 3 Sustainable Development Population, environment and development For example World population has more than doubled in only 43 years, from 2.5 billion in 1950 to 5.5 billion 1993. Unless death rates rise sharply, it may reach 1l billion by 2045, and 14 billion by 2100 Resources, economic development, and resource scarcity All countries seek economic growth: increasing their capacity to provide goods and services for final Such growth is usually measured by an increase in a country's gross national product(GNP) GNP is the market value in current dollars of all goods and services produced by an economy for final use during a year. and To show one person's slice of the economic pie, economists often calculate the GNP per capita(per person); the gnp divided by the total population Increase in GNP and GNP per capita have trad itionally been used to indicate an increase in"quality of life” The MDCs have about 1.2 billion people(22% of the worlds population), and command about 85% of the world's wealth and income, use 88%of its natural resources and use 73% of its energy, and generate most of its pollution and wastes The LDCs have low to moderate industrialization and GNPs per capita Most lie in the Southern Hemisphere- in Africa, Asia, and Latin America. Have 4.3 billion people, or 78%of world's population, have about 12% of the natural resources and use about 27% of the energy Resources, economic development, and resource scarcity(contd) However, each year, LDCs pay MDCs four times more in debt interest than they receive in aid Today, one in 5 people lives in luxury and the next three get by, while the fifth struggles to survive on less than $l per day!! The question the arises: is it lack of resources? Resources and resource scarcity(contd) A resource is anything we get from the living or nonliving environment to meet our needs and wants Natural Resources is something that is useful to people and these Renewable and non-renewable resources Renewables include; solar energy, air, wind, water etc1 Lecture 3 Sustainable Development Population, environment and development For example…….. World population has more than doubled in only 43 years, from 2.5 billion in 1950 to 5.5 billion in 1993. Unless death rates rise sharply, it may reach 11 billion by 2045, and 14 billion by 2100. Resources, economic development, and resource scarcity • All countries seek economic growth: increasing their capacity to provide goods and services for final use. Such growth is usually measured by an increase in a country’s gross national product (GNP): • GNP is the market value in current dollars of all goods and services produced by an economy for final use during a year….and... • To show one person’s slice of the economic pie, economists often calculate the GNP per capita (per person); the GNP divided by the total population. • Increase in GNP and GNP per capita have traditionally been used to indicate an increase in “quality of life”..……But... The MDCs have about 1.2 billion people (22% of the world’s population), and command about 85% of the world’s wealth and income, use 88% of its natural resources and use 73% of its energy, and generate most of its pollution and wastes…… The LDCs have low to moderate industrialization and GNPs per capita Most lie in the Southern Hemisphere – in Africa, Asia, and Latin America. Have 4.3 billion people, or 78% of world’s population, have about 12% of the natural resources and use about 27% of the energy. Resources, economic development, and resource scarcity (contd) • However, each year, LDCs pay MDCs four times more in debt interest than they receive in aid. • Today, one in 5 people lives in luxury and the next three get by, while the fifth struggles to survive on less than $1 per day!! – The question the arises: is it lack of resources? Resources and resource scarcity (contd)…. • A resource is anything we get from the living or nonliving environment to meet our needs and wants. • Natural Resources is something that is useful to people…….and these……are • Renewable and non-renewable resources – Renewables include; solar energy, air, wind, water etc.;