environmental health news jobs

Doesn’t the EPA already regulate pollution? Why do they need AGW as a reason?
http://news.yahoo.com/s/ap/20091207/ap_on_go_ot/us_epa_climate
EPA: Greenhouse gases endanger human health
“The Environmental Protection Agency has concluded greenhouse gases are endangering people’s health and must be regulated, signaling that the Obama administration is prepared to contain global warming without congressional action if necessary.”
Or is this a way of saying there will be even MORE EPA rules that drive up the cost of manufacturing in the USA and drive more jobs out of the country?
Meanwhile, the cheap imports from China are already increasing pollution with all the ships crossing the ocean to bring those cheap imports to Walmart.
Will the EPA also act to limit the pollution caused by imports, which are taking our jobs?
If the EPA limited imports, they would be creating more jobs in the USA and counterbalancing the job losses from increased regulation.
Will they do both, or will they do only one but not the other and only hurt the economy?
Because Co2, something we all breath out, and plants need to live, was not considered a pollutant, strangely enough.
Obama ‘green jobs’ adviser Van Jones quits