Brazil

Global Scan

Scientists have unearthed a massive new dinosaur — bigger than a jetliner

It's hard to know if this is the biggest dinosaur ever to walk the Earth, but it's right up there with other titanosaurs, and its fossil is perhaps the most intact ever discovered. We also look at cyberwarfare, from NATO's plans for a collective defense against Russian hacking to a hacker's coalition that is fighting ISIS online. And have you ever heard of "chifa?" — it's a Peruvian-Asian fusion cuisine. All that and more, in today's Global Scan.

Science, Tech & Environment

Rainmaking in the Amazon

The Amazon rain forest is a crucial player in the global climate system�for one thing it's a massive store of carbon, but The World's Alex Gallafent climbs a scientific tower in the Brazilian Amazon to explore another function: rainmaking.

Science, Tech & Environment

Searching the ocean

Anchor Marco Werman speaks with John Fish of American Underwater Search and Survey about the challenges of an undersea search. Investigators have descended upon a stretch of the Atlantic Ocean where floating debris was found a day after an Air France airliner went missing with 228 passengers on board.