In discussing climate change and greenhouse gas (GHG) emissions, a key distinction must be made between the stock of GHGs in the atmosphere, and the flow of GHGs, primarily emissions. Understanding this difference is crucial for designing and implementing policies to effectively address the problem. Because a bathtub is something that most of us are [...]
Our inability to predict policy outcomes was once again confirmed this week by the wildly popular Cash for Clunkers program. The program provides between $3,500 and $4,500 to anyone who trades in an older auto for a shiny new car that has better fuel efficiency. One billion dollars was originally allocated for the program, which [...]
State of the Planet is a forum for discussion on varying viewpoints. The opinions expressed by the authors and those providing comments are theirs alone, and do not necessarily reflect the opinions of the Earth Institute or Columbia University.
