keeping a sharp eye on it all those massive wildfires in the amazon are getting worse, and climate experts are calling the situation dire, saying the very air we breathe is in jeopardy anne thompson now on how these fires are putting our planet in peril. reporter: this is brazil s dry season, when wildfires dot the amazon but not like this. three weeks of raging fires setting off alarm bells around the world. there s so much smoke, nasa satellites captured it from space. a cold weather system helped by changing winds pushing smoke into cities more than a thousand miles away. january, an 83% why the rise human activity is suspected, particularly burning clear land for farming, ranching, anddevepmen encouraged b brazil s president the impact is devastating because it s destroying unique, irreplaceable ecosystems and it s worsening climate change at the same