The World Is Full of Externalities: Here’s How Governments Solve Them

It’s easy to picture how someone’s personal interests can go against the social good. Just consider a noisy conversation in a library that makes it difficult for everyone to concentrate. Think about how secondhand smoke negatively impacts others—it doesn’t just affect the smoker. Even driving in congested areas isn’t particularly helpful to society since it…

The Kaya Identity: Carbon Dioxide Emissions and the Economy

The environmental consequences of carbon dioxide emissions are clear; it contributes to over three-quarters of global greenhouse gas emissions,1 exacerbating climate change and its innumerable consequences. Action needs to take place now, but truly taking action in an ever-expanding economy has proven and will continue to be a substantial hurdle. For this reason, moving forward,…

A success for sustainable seafood

Recent news: on July 4, Canada Safeway has announced that by 2015, it plans to only sell sustainably-farmed seafood. I must confess that the news, when I first heard it, made me feel something like this: Safeway’s promise puts it in the company of many other major supermarket chains that have committed to selling nothing…

Indoor Pollution

[youtube xH_84-8BsEA&feature] We often think about the air and water pollution outside, so when trying to stay away from contaminated air, we stay at home. However, indoor air pollution is more serious than we think. Because most of our life is occuring inside, it is even more dangerous than outside pollution. To avoid pollution, we often…