This article appeared in Policy Options in February 2016.
Want an effective climate policy? Heed the
evidence
Carbon taxes and caps may be most
effective in economic theory, but smart regulation will produce better climate
policy for our political reality.
Wisely,
Prime Minister Justin Trudeau resisted the temptation at the Paris climate
summit in December to double down on Stephen Harper’s 2030 target for Canadian
carbon dioxide (CO2) emissions. While future emissions promises are easily
made, effective climate policy is devilishly difficult. To have any chance,
Trudeau needs to stay wise — which starts by avoiding advice from technology
and policy advocates who themselves avoid inconvenient evidence from leading
climate policy research and real-world experience. What does this evidence tell
us?
For
one thing, it’s a mistake to expect a big contribution from energy efficiency.
For three decades, governments and utilities have made efficiency the focus of
their emissions reduction efforts, with negligible results. Yes, energy
efficiency is always improving, and we can slightly accelerate that trend. But
humans require energy for basic needs and, more important, we keep inventing
frivolous devices that use more. (Need evidence? Stroll through your local
big-box store.)