While setting lofty goals, the plan does not explicitly call for eliminating the use of fossil fuels such as oil and natural gas, a nod to pragmatism that may disappoint some of Ocasio-Cortez's strongest supporters.
"Let's be clear, the Green New Deal is a trojan horse for socialism", said the House GOP statement. But the freshman congresswoman from NY introduced a Green New Deal resolution on Thursday that is already emerging as a key policy test for 2020 Democratic candidates.
Government can take an equity stake in Green New Deal projects "so the public gets a return on its investment", she said.
FILE PHOTO: Rep. Alexandria Ocasio-Cortez (D-NY) waits for a ceremonial swearing-in picture on Capitol Hill in Washington, U.S., January 3, 2019. "The green dream or whatever they call it, nobody knows what it is, but they're for it right?" The next attempt, she said, will need broader support.
Pelosi also named the nine Democratic members of the new Select Committee on the Climate Crisis - and notably left Ocasio-Cortez off the list.
House Speaker Nancy Pelosi says she welcomes "the enthusiasm" of backers of a Green New Deal, but she stopped short of supporting it.
In the past decade, she has already seen Democrats try and fail to pass a sweeping cap-and-trade climate law.
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"Even the solutions that we have considered big and bold are nowhere near the scale of the actual problem that climate change presents to us, our country, our world", Ocasio-Cortez said on NPR's Morning Edition.
"The Green New Deal is a raw deal for the American taxpayer", said Wyoming Republican John Barrasso, chairman of the Senate Environment and Public Works Committee.
Pelosi said the new panel, which also will include six Republicans, "will be vital in advancing ambitious progress for our planet".
The freshman lawmaker and veteran Sen.
A joint resolution drafted by Ocasio-Cortez and Markey sets a goal to meet "100 percent of the power demand in the United States through clean, renewable and zero-emission energy sources", including dramatic increases in wind and solar power. Ed Markey (D-Mass), unveiled a plan to revamp the USA economy and eliminate carbon emissions on Thursday, suggesting in an NPR interview that deficit spending might be the best way to pay for it.
Democrats including Rep. Alexandria Ocasio-Cortez of NY are calling for a Green New Deal meant to transform the US economy to combat climate change and create thousands of jobs in renewable energy.
Harris and other Democratic presidential hopefuls - Senators Corey Booker, Bernie Sanders, Jeff Merkley, Elizabeth Warren and Kirsten Gillibrand - as well as Julian Castro and independent Michael Bloomberg, have endorsed the Green New Deal concept, without outlining specific policies. President Donald Trump has scrapped Obama's plan, which imposed emissions limits on coal-fired power plants, as a job-killer.