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This week's DalPower video features John Cullen, professor in the Department of Oceanography, who was named a Fellow of the Royal Society of Canada last year.

This honour comes for Dr. Cullen after years of presenting solid research on significant global challenges. Just one example is his work on human-caused stratospheric ozone depletion, a hot-button issue in the 1980s and 90s. Although at the time scientists knew increased ultraviolet radiation from ozone depletion would harm marine organisms, they didn鈥檛 know by how much.

鈥淚 worked with Dr. Patrick Neale at the Smithsonian Institute and Richard Davis in my lab to develop new ways to measure the effects of ultraviolet radiation on photosynthetic plankton,鈥� explains Dr. Cullen. 鈥淲e discovered that UV radiation would cause significant but not catastrophic impacts and in doing so we developed a sound scientific foundation for making those assessments."

Read more about Dr. Cullen on .