So, Mr. Waxman, how much global warming will your bill avert?

by Marlo Lewis on May 6, 2009 · 2 comments

in Features, Global Warming

The Waxman-Markey cap-and-trade (energy tax) bill aims to reduce U.S. greenhouse gas emissions 20% below 2005 levels by 2020, 42% below by 2030, and 83% below by 2050. The cumulative cost in reduced GDP would likely total trillions of dollars. How much bang would we get for the buck?

Today, on, climate scientist Chip Knappenberger shows by the numbers that the Waxman-Markey bill “will have virtually no impact on the future course of the earth’s climate.”

To calculate the climatic effects of the bill, Chip uses the MAGICC* climate model developed by the National Center for Climate Research, and assumes a climate sensitivity of 3°C (in other words, a doubling of atmospheric greenhouse gas concentrations above pre-industrial levels is assumed to produce 3°C of warming).

MAGICC reveals that an 83% reduction in U.S. emissions “will only produce a global temperature ‘savings’ during the next 50 years of about 0.05ºC.”  Translating a bit, the temperature reduction is nine hundredths of one degree Fahrenheit, or two years of avoided warming.

* Model for the Assessment of Greenhouse-gas Induced Climate Change

Rich Webb May 7, 2009 at 5:13 pm

Let's be honest about the goals of the Waxman-Markey legislation, it has nothing to do with climate change and everything to do with reducing the population of the United States, and ultimately the entire world, by 42% by 2030 and 83% by 2050, which is the only way their emissions reductions are in any way achievable. Let's start calling these fools what they are "80%ers", ie. Those who believe the world would be a happy place if they could just get rid of at least 80% of the current population.

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