A long and arduous day of tough talking at the Lima climate change summit's taken its toll on some of the journalists covering it.

The summit ran two days past its closing deadline but by Sunday 190 nations had at least agreed the basics of a deal to combat greenhouse gas emissions.

They're being asked to submit national plans to tackle global warming for the basis of a new agreement to be hammered out at another summit in Paris in a year's time.

The text of the Lima summit has eased the concerns of developing nations that previous drafts would put too much of a load on emerging economies rather than rich ones to address climate change.

(SOUNDBITE)(Spanish) MANUEL PULGAR, PERUVIAN ENVIRONMENT MINISTER, SAYING:

"Allow me to tell you that as with all texts this is not perfect but it respects the positions of the parties and aims to be a product of its own which is one based on what's been proposed to the presidents of COP. And with this text we're all winne