Secretary of State Kerry defends the Green Climate Fund at the UN climate summit in Lima, Peru, while blasting GOP climate deniers back in Congress.
"In an effort to understand what life is like in the world's murder capital, we spent two weeks in San Pedro Sula. We found a city in crisis, but also a place steeped in hope...."
Plants in the Amazon basin are moving in response to changing environments. Justin Catanoso reports on climate change in Peru.