Democratic presidential candidate Pete Buttigieg said Sunday he endorses the Green New Deal introduced by progressive members of Congress.

"Yes, I think it's the right beginning," he told CNN's "State of the Union."

Buttigieg, who is the mayor of South Bend, Ind., and the youngest candidate running for president, is the latest 2020 candidate to sign onto the climate change resolution.

Mayor @PeteButtigieg says he supports a Green New Deal: “It matches a sense of urgency about that problem of climate change with a sense of opportunity around what the solutions might represent.” https://t.co/2rxqybxhRP #CNNSOTU pic.twitter.com/NMNZnhkVFq — State of the Union (@CNNSotu) February 10, 2019

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Climate change is expected to be a key issue in the upcoming election.

Rep. Alexandria Ocasio-Cortez Alexandria Ocasio-CortezHouse passes bill to avert shutdown Trump attacks Omar for criticizing US: 'How did you do where you came from?' The Memo: Dems face balancing act on SCOTUS fight MORE (D-N.Y.) in the House and Sen. Ed Markey Edward (Ed) John MarkeySchumer: 'Nothing is off the table' if GOP moves forward with Ginsburg replacement Democrats see fundraising spike following Ginsburg death Democratic senator calls for eliminating filibuster, expanding Supreme Court if GOP fills vacancy MORE (D-Mass.) in the Senate introduced a resolution last week that would push the U.S. to achieve net-zero greenhouse gas emissions within the next 10 years.

A number of announced and potential 2020 candidates, including Sens. Kamala Harris Kamala HarrisButtigieg stands in as Pence for Harris's debate practice First presidential debate to cover coronavirus, Supreme Court Harris joins women's voter mobilization event also featuring Pelosi, Gloria Steinem, Jane Fonda MORE (D-Calif.), Bernie Sanders Bernie SandersButtigieg stands in as Pence for Harris's debate practice Bernie Sanders warns of 'nightmare scenario' if Trump refuses election results Harris joins women's voter mobilization event also featuring Pelosi, Gloria Steinem, Jane Fonda MORE (I-Vt.), Kirsten Gillibrand Kirsten GillibrandSunday shows preview: Justice Ginsburg dies, sparking partisan battle over vacancy before election Suburban moms are going to decide the 2020 election Jon Stewart urges Congress to help veterans exposed to burn pits MORE (D-N.Y.) and Cory Booker Cory Anthony BookerBipartisan praise pours in after Ginsburg's death DHS opens probe into allegations at Georgia ICE facility Democratic lawmakers call for an investigation into allegations of medical neglect at Georgia ICE facility MORE (D-N.J.), have endorsed the resolution.

However, the resolution has also earned bipartisan pushback from critics who say it would be expensive and practically infeasible.

Buttigieg on Sunday called the plan a "framework" and "more a plan than a fully articulated set of policies."

"We're being disrupted by climate change ... This is a national emergency," he said. "I think the elegance from a policy perspective of the concept of the Green New Deal is it matches a sense of urgency about that problem of climate change with a sense of opportunity around what the solutions might represent."