R-410A bromine or chlorine, R-410A (which contains only fluorine) does not contribute to ozone depletion, and is therefore becoming more widely used, as ozone-depleting refrigerants like R-22 are phased out. However, it has a high global warming potential (1700 times the effect of carbon dioxide), similar to that of R-22. Since R-410A allows for higher SEER ratings than an R-22 system, by reducing power consumption, the overall impact on global warming of R-410A systems will be substantially lower than that of R-22 systems due to reduced greenhouse gas emissions from power plants. R-410A R-410A, sold under the trademarked names AZ-20, EcoFluor
Global warming taxes Pigovian tax to address global warming is also an old idea. It was proposed as far back as 1992 by Martin S. Feldstein, once chief economist to Ronald Reagan, on the editorial page of The Wall Street Journal. Global warming taxes In response to widespread concerns about a general increase in the temperature of the earth's climate, a number of tax jurisdictions have proposed or imposed global warming taxes intended to generate revenues to mitigate the effects of the human activities contributing to global warming or to discourage such activities. The idea of using taxes to fix problems, rather than