. >> this week on "global 3000," we're off to ivory coast and bonoua carnival, a celebration where gay people don't have to hide. in taiwan, courts say same-sex couples must be allowed to marry. but not everyone is celebrating. but first we go to brazil, where vast areas of rainforest are still being destroyed, with devastating consequences for us all. the world's largest tropical rainforests are found in south east asia, the congo basin, and the amazonian lowlands. these "green lungs" represent

>> this week on "global 3000," we're off to ivory coast and bonoua carnival, a celebration where gay people don't have to hide. in taiwan, courts say same-sex couples must be allowed to marry. but not everyone is celebrating. but first we go to brazil, where vast areas of rainforest are still being destroyed, with devastating consequences for us all. the world's largest tropical rainforests are found in south east asia, the congo basin, and the amazonian lowlands. these "green lungs" represent the planet's largest pool of captured carbon dioxide. but over the decades, vast areas have been deforested, as people look for timber, pastures, farmland, and minerals. the largest single area of rainforest is the amazon basin, which is mainly in brazil. but since 1970, more than 770,000 square kilometers has been destroyed, an area twice the size of germany. fighting to halt the destruction is a risky business -- 50 activists were killed in brazil in 2015 alone. >> the land around here is often ravaged by fire. we join environmental activist elizeu berÇacola in the state of rondÔnia in southe

e-ma >> this week on "global 3000," we're off to ivory coast and bonoua carnival, a celebration where people don't have to hide. in taiwan, courts say same-sex couples must be allowed to marry. but not everyone is celebrating. but first we go to brazil, where vast areas of rainforest are still being destroyed, with devastating consequences for us all. the world's largest tropical rainforests are found in south east asia, the congo basin, and the amazonian lowlands. these "green lungs" represent