Research shows that the more people care about money, wealth, and possessions, the less they value protecting the environment. Materialistic values correlate negatively with how often adults and children engage in pro-environmental behaviors such as commuting by bike, reusing paper, buying secondhand, and recycling. One study found that among 20 of the wealthiest nations in the world, those whose citizens are most focused on money and achievement have higher levels of carbon dioxide emissions , even after controlling for gross domestic product (GDP). In a 2010 article in Solutions Journal,...