Feb 28, 2019 Abstract This talk focus on the approach used by the scientific community to assess literature relevant to the question of what is dangerous anthropogenic interference with the climate system: the so-called “reasons for concern”, including what they are, how they evolved, and what the IPCC Special Report on Global Warming of 1.5 degrees says, particularly for the selected human and natural systems. Speaker KRISTIE EBI Director of the Center for Health and the Global Environment, and Professor in the Departments of Global Health and of Environmental and Occupational Health Sciences, University of Washington Respondent STEWART J. COHEN Environment and Climate Change Canada