(AUDIO) Barcelona Institute for Global Health (ISGlobal) Your browser does not support the audio element. Caption Matilde van der Bosch, senior researcher at the Barcelona Institute for Global Health (ISGlobal) and leader of the study. Why it's important to distinguish between the type of vegetative surface. Credit ISGlobal Usage Restrictions No restrictions License Original content 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.