Canada's Changing Climate Report 2019Climate change is one of the defining challenges of the 21st century. It is a global problem, and tackling it requires global action. Governments around the world have committed to work together to limit global warming, recognizing that climate-related risks grow with the magnitude of warming and associated changes in climate. The Paris Agreement under the United Nations Framework Convention on Climate Change, which entered into force on November 4, 2016, established a goal of holding the increase in global temperature to 1.5ºC–2ºC above pre-industrial levels, as well as a commitment to engage in adaptation planning and implementation. Collective action in pursuit of the global temperature goal is being implemented; however, it is recognized that this goal will only reduce and not eliminate the risks and impacts of climate change. Governments and citizens need to understand how climate change might impact them, in order to plan and prepare for the challenges that climate change brings.