Bernie Sanders may decry how big money influences political elections, but that isn’t stopping groups independent of the Democratic presidential candidate from spending significant cash in his name. The latest organization to do so: Friends of the Earth Action. The national environmental nonprofit this week released an ad that praises Sanders’ green record and highlights his early opposition to the Keystone XL pipeline.

Did this shadowy pro–Bernie Sanders super PAC just dupe James Bond? Actor Daniel Craig donated to group led by man with history of financial, legal woes “He’s proven a bold and fearless voice for a healthy and just world,” the ad’s narrator says. The ad, first reported by CNN, is airing in Iowa and New Hampshire markets this week. Friends of the Earth Action is a social welfare nonprofit, also known as a 501(c)(4) organization. Under law, 501(c)(4) nonprofits are not required to disclose their donors. These types of nonprofits have increasingly become vehicles for dark money — untraceable and often immense cash flows used to influence elections. Such nonprofits must by law avoid being primarily political, but that has not stopped them from collectively injecting hundreds of millions of dollars into elections this decade. Hillary Clinton’s presidential campaign labeled Friends of the Earth Action a dark money group in a recent blog post titled “Sanders’ ‘no super PAC’ myth.” But Friends of the Earth Action rejects the dark money label. “We’ve got a long history of engaging in the political process that predates super PACs and Citizens United,” said Erich Pica, the group’s president. “So they can call us a dark money group, but we are mainly small-donor driven.”

The ad’s sponsor

Friends of the Earth Action says it “provides extra political muscle” to sister group Friends of the Earth, a 501(c)(3) nonprofit founded in 1969 that “urge[s] policymakers to defend the environment and work towards a healthy environment for all people,” according to its website. This is not Friends of the Earth Action’s first time entering the political arena. In 2008, for example, Friends of the Earth Action spent more than $70,000 in support of Democrat John Edwards’ failed presidential run. The Sanders ad blitz is twofold, Pica said. He sees Sanders as more committed than Clinton to environmental issues and wants to force a conversation on climate change — a topic that has yet to be robustly discussed in debates. Pica has, perhaps, already seen a measure of success: Sanders on Wednesday released a statement addressing a new report confirming 2015 was the hottest year in recorded history. “Unless we get our act together, we will see in years to come more droughts, more floods and more extreme weather disturbances,” Sanders said in the statement.

Who’s behind it?

Pica is helping lead the ad blitz. Canal Partners Media placed the ad, according to Federal Election Commission records. The media buying group regularly places ads for Democratic parties, movements and candidates.

Money in

When it comes to their donors, social welfare nonprofits can be — and often are — opaque. But heeding Sanders’ money-in-politics gospel, Pica is promising transparency. Friends of the Earth Action, he says, will disclose within 24 hours on its website every donor who contributes more than $200. This aligns with the level of disclosure federal law requires traditional political action committees, super PACs and political parties. This week’s ad flurry was purchased with existing funds, Pica said. Normally, Friends of the Earth only partially discloses its donors and has accepted anonymous contributions when donors request anonymity. At the same time, the group fought for more political disclosure in Minnesota, where legislators introduced a bill in 2014 to tighten campaign finance rules.

Money out

Friends of the Earth Action paid about $20,000 to produce and air the ads, according to FEC documents. This is the first expenditure the group has made in any federal election this cycle — presidential or congressional — records show.