If you thought carbon dioxide (CO2) was bad on the environment, watch out: Scientists at the University of Toronto are reporting the discovery of a new greenhouse gas that is 7,000 times more powerful than CO2 when it comes to global warming. The gas, perfluorortributylamine (PFTBA) is used in the electrical industry for equipment such as transistors and capacitors, and, according to a researcher who spoke to The Guardian newspaper, it "has the highest radiative efficiency of any molecule detected in the atmosphere to date." What does that mean? Scientists estimate that PFTBA is 7,100 times more powerful than CO2 at warming the Earth over a 100 year time span. Unlike CO2, PTFBA is not absorbed by forests and oceans and there are no known "sinks" on the planet to absorb it. Instead, it sticks around in the atmosphere for about 500 years, the Toronto researchers estimate. Read More