Detailed text transcripts for TV channel - KGO - 20140922:10:07:00
Science backs it up. >> reporter: the united nations secretary-general among the marchers. >> i'm overwhelmed by such a strong power and energy and voice of people. >> reporter: the worldwide marches coincide with the united nations climate summit. starting tuesday when more than 120 world leaders get together in new york to push for a global climate treaty by next year. one that among other things will reduce greenhouse gas emissions that cause the earth's temperature to rise. academy award winning actress emma thompson is urging support. >> you have to get everyone who knows what's going an,...
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