María T. Martelo ƙwararriyar masaniyar yanayi ce ta ƙasar Venezuela. Martelo tana aiki a Caracas a cibiyar bincike da ke haɗe zuwa Cibiyar Kula da Ruwa da Yanayin yanayi na Ma'aikatar Muhalli da Albarkatun Kasa. Matsanancin yanayi abubuwan da suka shafi aikinta ne. Saboda binciken da ta yi, an nada Martelo a cikin Kwamitin Tsare-tsare na Gwamnati kan Canjin Yanayi. A cikin 2007, a matsayin mataimakiyar shugabar Rukunin Aiki na I: Tushen Kimiyyar Jiki na Canjin Yanayi, ta shiga cikin ƙirƙirar Rahoton Ƙimar Na huɗu na IPCC. A farkon 2007 Dr. Miriam Diaz, sabuwar ma'aikaciyar gwamnatin Venezuela ta maye gurbinta a IPCC. "IPCC Workshop on Changes in Extreme Weather and Climate Events: Workshop Report" (PDF). INTERGOVERNMENTAL PANEL ON CLIMATE CHANGE. Beijing. 11–13 June 2002. Archived from the original (PDF) on 16 October 2005. Retrieved 2021-04-05.CS1 maint: date format (link) "IPCC AR4 WGI Organization". Intergovernmental Panel on Climate Change. 2008-01-16. Archived from the original on 9 May 2008. Retrieved 2021-04-05. "REPLACEMENT OF A MEMBER OF THE IPCC BUREAU" (PDF). INTERGOVERNMENTAL PANEL ON CLIMATE CHANGE.