UPDATE: President Obama Pledges US Lead On Climate Change (Nasdaq) PRAGUE (AFP)--President Barack Obama said Sunday the U.S. was ready to take the lead in tackling climate change, as European Union leaders pushed him to follow their ambitious targets to combat global warming. [News Source]

UPDATE: President Obama Pledges US Lead On Climate Change (Nasdaq) PRAGUE (AFP)--President Barack Obama said Sunday the U.S. was ready to take the lead in tackling climate change, as European Union leaders pushed him to follow their ambitious targets to combat global warming. [News Source]

UPDATE: President Obama Pledges US Lead On Climate Change (Nasdaq) PRAGUE (AFP)--President Barack Obama said Sunday the U.S. was ready to take the lead in tackling climate change, as European Union leaders pushed him to follow their ambitious targets to combat global warming. [News Source]

UPDATE: President Obama Pledges US Lead On Climate Change (Nasdaq) PRAGUE (AFP)--President Barack Obama said Sunday the U.S. was ready to take the lead in tackling climate change, as European Union leaders pushed him to follow their ambitious targets to combat global warming. [News Source]

UPDATE: President Obama Pledges US Lead On Climate Change (Nasdaq) PRAGUE (AFP)--President Barack Obama said Sunday the U.S. was ready to take the lead in tackling climate change, as European Union leaders pushed him to follow their ambitious targets to combat global warming. [News Source]

UPDATE: President Obama Pledges US Lead On Climate Change (Nasdaq) PRAGUE (AFP)--President Barack Obama said Sunday the U.S. was ready to take the lead in tackling climate change, as European Union leaders pushed him to follow their ambitious targets to combat global warming. [News Source]

UPDATE: President Obama Pledges US Lead On Climate Change (Nasdaq) PRAGUE (AFP)--President Barack Obama said Sunday the U.S. was ready to take the lead in tackling climate change, as European Union leaders pushed him to follow their ambitious targets to combat global warming. [News Source]

UPDATE: President Obama Pledges US Lead On Climate Change (Nasdaq) PRAGUE (AFP)--President Barack Obama said Sunday the U.S. was ready to take the lead in tackling climate change, as European Union leaders pushed him to follow their ambitious targets to combat global warming. [News Source]

UPDATE: President Obama Pledges US Lead On Climate Change (Nasdaq) PRAGUE (AFP)--President Barack Obama said Sunday the U.S. was ready to take the lead in tackling climate change, as European Union leaders pushed him to follow their ambitious targets to combat global warming. [News Source]

UPDATE: President Obama Pledges US Lead On Climate Change (Nasdaq) PRAGUE (AFP)--President Barack Obama said Sunday the U.S. was ready to take the lead in tackling climate change, as European Union leaders pushed him to follow their ambitious targets to combat global warming. [News Source]

UPDATE: President Obama Pledges US Lead On Climate Change (Nasdaq) PRAGUE (AFP)--President Barack Obama said Sunday the U.S. was ready to take the lead in tackling climate change, as European Union leaders pushed him to follow their ambitious targets to combat global warming. [News Source]