Variable

Web link

Pop. Pyramid

http://www.census.gov/ipc/www/idbpyr.html

N, r, and G

http://www.census.gov/ipc/www/idbsum.html

Life expectancy

http://www.census.gov/ipc/www/idbsum.html http://www.who.int/country/en/

Kids/woman

http://www.census.gov/ipc/www/idbsum.html

Infant Mortality

http://www.who.int/country/en/

Adult Mortality

http://www.who.int/country/en/

Contraceptive use

http://www.census.gov/ipc/www/idbprint.html (055 Prevalence of contraceptives)

Immigration Emigration

http://www.census.gov/ipc/www/idbagg.html (008 vital rates)

Ecological footprint

http://www.nationmaster.com/graph-T/env_eco_foo&int=-1

Water supply amt./quality

http://www.nationmaster.com/graph-T/hea_wat_ava&int=-1&id=fr&id=tz&id=us

Population density

http://www.census.gov/ipc/www/idbagg.html (001 density)

Land use

http://www.cia.gov/cia/publications/factbook/index.html

Wildness

http://www.nationmaster.com/graph-T/env_wil&int=-1

Annual health care $ per person

http://www.who.int/country/en/

Literacy Rate

http://www.cia.gov/cia/publications/factbook/index.html

GDP per capita and population below poverty line

http://www.cia.gov/cia/publications/factbook/index.html