US to ban chemicals that have greener options
THE US has decided to ban the use of chemicals that have greener alternatives. The move is expected to reduce carbon dioxide emissions by up to 42 million tonnes by 2020. This is equal to carbon dioxide emissions from annual electricity use of more than 5 million homes. The United States Environmental Protection Agency ( EPA) said it will tweak the Clean Air Act to "change the status of certain high-global warming potential chemicals" from "acceptable" to "unacceptable". This will be EPA's second action aimed at reducing emissions of hydrofluorocarbons (HFCs), a class of potent greenhouse gases, under President Obama's Climate Action Plan. The new proposal complements an earlier action EPA proposed to expand the list of climate-friendly alternatives for refrigeration and air-conditioning under its Significant New Alternatives Policy (SNAP) Program. SNAP evaluates substitute chemicals and technologies that are safe for the ozone layer.