climate change

Science, Tech & Environment

The UN climate summit opens with a voice from an endangered nation

Leaders from all over the world have gathered in New York to attend the UN Climate Summit. The first thing they heard was an impassioned poem from a mother and activist from the Marshall Islands, a tiny nation in the Pacific that may no longer exists if climate change isn't halted.

Science, Tech & Environment

Geo Quiz and answer

For our Geo Quiz, quiz, we're looking for a rocky archipelago off Norway's northwest coast. The answer is Lofoten, where marine biologist Hieke Vester studies and records communication among marine mammals. The World's David Leveille has the story.

Conflict & Justice

Scott Brown and climate change

The election of an anti-cap & trade Republican to fill the seat of the late Senator Ted Kennedy is clouding prospects for a climate bill in the Senate. That makes prospects for strong global action on climate change even murkier. Peter Thomson reports.