An environmental protection organization ranked Mike Bloomberg and Sen. Amy Klobuchar Amy KlobucharThe Hill's Morning Report - Sponsored by The Air Line Pilots Association - White House moves closer to Pelosi on virus relief bill EPA delivers win for ethanol industry angered by waivers to refiners It's time for newspapers to stop endorsing presidential candidates MORE (D-Minn.) last in the presidential primary field based on each candidate’s proposed climate plans.

Bloomberg, the former New York City mayor, and Klobuchar each received a score of just one out of 10 on the Center For Biological Diversity Action Fund’s updated climate scorecard released Wednesday.

The group measured the six candidates set to appear in Wednesday night’s Nevada debate on 10 actions to protect the climate.

ADVERTISEMENT

Bloomberg and Klobuchar only received a point for a commitment to “end new fossil fuel leasing,” which all six candidates on the scorecard received credit for.

“The stark differences between how the candidates would address the climate crisis shouldn’t be glossed over,” Kassie Siegel, climate director at the Center for Biological Diversity Action Fund, said in a statement. “Bloomberg’s climate plan contains almost no bold executive actions, firm targets to curb greenhouse pollution, or spending to confront the emergency.”

In contrast, Siegel said, Sens. Bernie Sanders Bernie SandersKenosha will be a good bellwether in 2020 Biden's fiscal program: What is the likely market impact? McConnell accuses Democrats of sowing division by 'downplaying progress' on election security MORE (I-Vt.) and Elizabeth Warren Elizabeth WarrenBiden's fiscal program: What is the likely market impact? Warren, Schumer introduce plan for next president to cancel ,000 in student debt The Hill's 12:30 Report - Presented by Facebook - Don't expect a government check anytime soon MORE (D-Mass.), “would use the full power of the presidency and commit trillions to fight this greatest threat to our planet.”

Sanders received the highest score from the group, with a score of 10 out of 10 based on the qualities the group looked at. Warren was second, with eight out of 10, losing points in two categories: plans to to “phase out existing fossil fuel production” and to “transition to a publicly-owned power system.”

Klobuchar has differed from the progressives on fossil fuel policy, saying that she sees natural gas as a “transition fuel” to help the U.S. eventually become carbon neutral.

ADVERTISEMENT

A statement from the group characterized proposals by Bloomberg and Klobuchar as the “vaguest and weakest climate plans.”

Former South Bend, Ind., Mayor Pete Buttigieg Pete ButtigiegBipartisan praise pours in after Ginsburg's death Bogeymen of the far left deserve a place in any Biden administration Overnight Defense: Woodward book causes new firestorm | Book says Trump lashed out at generals, told Woodward about secret weapons system | US withdrawing thousands of troops from Iraq MORE improved his score from a two out of 10 to a four out of 10 in the updated score, based on his new commitment on climate in his infrastructure plan released last month, the group said.

Former Vice President Joe Biden Joe BidenSenate Republicans face tough decision on replacing Ginsburg What Senate Republicans have said about election-year Supreme Court vacancies Biden says Ginsburg successor should be picked by candidate who wins on Nov. 3 MORE received a two out of 10 from the group, including a second point for committing to prosecute big polluters in court.

The Center for Biological Diversity Action Fund did not include billionaire Tom Steyer Tom SteyerTV ads favored Biden 2-1 in past month Inslee calls Biden climate plan 'perfect for the moment' OVERNIGHT ENERGY: Trump administration finalizes plan to open up Alaska wildlife refuge to drilling | California finalizes fuel efficiency deal with five automakers, undercutting Trump | Democrats use vulnerable GOP senators to get rare win on environment MORE in the scorecard. Steyer failed to make the Wednesday night debate stage in Las Vegas.

A previous version of the scorecard ranked Klobuchar last and did not include Bloomberg.

Rachel Frazin contributed.