Academic Research Development and application of isotopic dating techniques for investigating human impacts on environment and calibrating Quaternary timescales. Geology of human evolution. East African geology, archaeology and paleontology; interpretation of geological factors in faunal evolution, human evolution, climate change and paleoenvironments. Geochronology (40Ar/39Ar, fission track, U-Th, U-Th-Pb, 137Cs, and 210Pb systematics), volcanology, tephrostratigraphy, isotope geology, geochemistry, tectonics, sedimentary basin analysis paleoenvironmental interpretations. Paleoclimates and climate change. Humanitarian Interests The interplay between natural science and complex humanitarian emergencies. Using remote sensing techniques to monitor and predict environmental disasters. Disaster management. Food security, water security, and environmental issues i
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