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Carbon dioxide and methane emissions are a most natural part of ecology and life, and refrigerant gas emissions are so minimal and unnecessary that they are negligible. All life forms, except chlorophyll-based plants, emit carbon dioxide and all emit carbon dioxide and methane as they decay. So those who are calling for zero carbon emissions would apparently like to see the earth become a planet devoid of all life forms. People should do all that they can to reduce energy consumption, because that's a great idea! Also, plant more trees -- another great idea!