UN head Ban Ki Moon said there is "unprecedented momentum" for sealing a deal on climate change at Copenhagen, which wrapped up its second day of negotiations on Tuesday.

"I expect a robust agreement at the Copenhagen summit that will be effective immediately and include specific recommendations on mitigation, adaptation, financing and technology," Ban told reporters at the UN headquarters in New York.

"I'm encouraged and I'm optimistic," the UN secretary general said.

Ban's confident stance towards the summit has been unwavering despite discord over recent information leaks including a series of British e-mails that suggested conspiracy from scientists to manipulate data about climate change.

"Nothing that has come out in the public as a result of the recent email hackings has cast doubt on the basic scientific message on climate change and that message is quite clear – that climate is changing much, much faster than we realized and we human beings are the primary cause," the secretary general stated, according to Reuters.

A second information leak occurred during Tuesday's proceedings when a draft compromise agreement allegedly authored by Danish officials surfaced on the Guardian newspaper. Clamor arose over provisions in the agreement that created distinctions between developing nations and the "least developed" nations, as well as provisions that transferred more control in enforcing the agreement to the World Bank.

Ban has said that a successful agreement at Copenhagen will include determined action from all parties involved, as well as "short-term, fast-track" financing for poorer countries until 2012.

"Never have so many different nations of all size and economic status made so many firm pledges together," Ban noted. "We must seize this moment, and continue pushing for still higher ambition."

The secretary general is scheduled to open the high-level segment of the climate change summit on Dec. 15, where 105 world leaders are expected to attend negotiations.