 It's known as the world's largest tropical wetland. But this year, Brazil's Pantanal is short on water, and the results have been catastrophic. Wildfires began in late May, and they've been scorching the region ever since. Hundreds of thousands of hectares have burned so far, and the typical dry period is still looming. Gustavo Figueiroa has seen the devastation up close. He's a biologist with the organization SOS Pantanal. We reached him today in Sao Paulo.