Battling Blazes (image) The Earth Institute at Columbia University Caption Farmworkers control a fire near the Peruvian city of Pucallpa. As more people move from rural areas into cities, there are fewer around to take such measures. Credit Kevin Krajick/Earth Institute Usage Restrictions None Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.