In this Feb. 20, 2019 photo, scientists Cherry Andrea Rojas, right, and Mariana Cardenas, organize soil samples to measure the content of organic matter and soil moisture, in a laboratory at Andes University in Merida, Venezuela. A team of scientists in Venezuela is trying to weather the political and economic crisis engulfing their country to record what happens as Venezuela's last glacier vanishes. (AP Photo/Rodrigo Abd)
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