Transparency critic Lumumba D’aping attended an informal meeting ahead of the global climate conference where the allegedly leaked “Danish text” proposals were circulated, the U.N. Climate Chief said Wednesday.

Yvo De Boer, head of the United Nations Framework Convention on Climate Change, said at a press conference Wednesday that the Danish government had organized “a lot” of consultations during the past year, including one attended by D’aping, the developing nations’ representative at the conference.

“[The Danish consultations] been going on throughout the year. And they also organized a consultation with a limited group of countries immediately before this session and in fact, Mr. Lumumba was one of the people that attended that informal session,” De Boer said.

“At that informal session, several texts were circulated as a way of stimulating discussion. All of those texts are now off the table.”

The proposal had drawn fire from D’aping, the Chairman of the Group of 77 and China Negotiating Group, for treating developing nations unfairly.

He said the proposal was circulated outside the authorized channel of negotiation, the UNFCCC.

“The Danish text is an extremely dangerous document for developing countries,” he said at a press conference earlier in the day.

“It is a total violation of the principles of transparency and openness. It is a rejection of the fact that the UNFCCC is the only legitimate forum for conducting negotiations by parties to the convention.”