"We really do not have more time," said the conference chair, Mexican Foreign Secretary Patricia Espinosa, demanding that negotiators keep at it throughout the night to meet a Friday evening deadline.
Intense climate talks stretch into final hours →
"The reports I have gotten are positive," she told a late-night meeting of parties to the 193-nation treaty. "A broad and balanced package of decisions is, indeed, within our grasp."
Climate talks intensify; negotiators see progress →