Answer to Question 1
The United States has been able to reign in air pollution with the help of the Clean Air Act, despite an increase in products produced by coal-powered plants. Great international improvements in air quality have not been measured, though. The biggest problem is that coordinated international efforts are difficult to achieve.
Answer to Question 2
Individuals in Sweden have reached a level of development where the average citizen has a high standard of living, an education, and choices about their future. They could teach others about how to achieve education for everyone, including women, and how to delay reproduction as a result. The people in Indonesia could teach others about the importance of the network of family and friends for survival. Sharing resources is something that those in developed countries have lost as a result of our independent spirits. Shared resources can be more sustainable than independent resources. In addition to understanding the need for family and friends for survival, those in Burkina Faso are closer to the environment than any of the others and can teach others about the natural cycles of ecosystems and how to live within their means as the environment changes.
Global Warming
Rate of Residential Change, Past Year, in the United States
An Alternative Model of Global Stratification
The three states of matter: solid, liquid, and gas.
Global greenhouse gas emissions agriculture
Gypsy moths native to Europe and Asia feed on oaks through much of the United States.