As if it were the naming of a new Pope, the Summit on Climate Change awaits for the white smoke of an agreement that responds to expectations and needs of humanity.

Intense negotiations very early today and a selective meeting with 26 presidents, in the presence of US President Barack Obama, now point to a document that could save the Conference of the UN Parties (COP15).

The draft circulating in the Bella Center congress palace tries to give some touches of optimism to an environment so far marked by deep differences between rich and Third World countries.

The main and most accepted trend by the majority refers to a six-month political pact that would be revised in a meeting prior to COP16 in Mexico, it was revealed.

But the draft, subject to several changes so that it can be accepted unanimously, is more precise and sets a two degree Celsius limit for global warming, supported by a fund of 70 billion Euros annually to help developing nations fight for climate.

Small insular states have repeatedly denounced that temperature rises should not exceed 1.2 degrees; otherwise, a rise of sea levels could make many islands disappear.

Experts interviewed by Prensa Latina highlighted that even if a related agreement is reached, the world is against the clock to sign and implement it before the Kyoto protocol expires late in 2012.

UN Secretary General Ban Ki-moon seems to be determined to avoid the COP15 failure, and is holding intense meetings with different heads of State or government.

In his speech this morning, Ban urged the heads of 130 countries to close ranks, to overcome differences, and adopt a transcendental declaration for the world today.

But the closing session began with a two-hour delay, and the wait for the "white smoke" will be undoubtedly long.