Volcanoes

MANILA, Philippines - The Philippines' most active volcano oozed lava and shot up plumes of ash Tuesday, forcing thousands of people to evacuate their homes and face the possibility of a bleak Christmas in a shelter.

MAUNA LOA OBSERVATORY, Hawaii - The readings at this 2-mile-high station show a troubling upward curve as the world counts down to crucial climate talks: Global warming gases are building in the atmosphere at record levels from emissions that match scientists' worst-case scenarios.