20.1 Demography and Population
To learn more about population concerns, from the new-era ZPG advocates to the United Nations reports, check out these links: http://openstax.org/l/population_connection and http://openstax.org/l/un-population
Interested in learning more about the latest research in the field of human ecology? Visit the Society for Human Ecology web site to discover what’s emerging in this field: http://openstax.org/l/human_ecology
Getting from place to place in urban areas might be more complicated than you think. Read the latest on pedestrian-traffic concerns at the Urban Blog web site: http://openstax.org/l/pedestrian_traffic
20.3 The Environment and Society
Visit the Cleanups in My Community website: http://openstax.org/l/community_cleanup to see where environmental hazards have been identified in your backyard, and what is being done about them.
What is your carbon footprint? Find out using the carbon footprint calculator at http://openstax.org/l/carbon_footprint_calculator
Find out more about greening the electronics process by looking at Greenpeace’s guide: http://openstax.org/l/greenpeace_electronics