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Time to tackle Toronto's warming

28 Sep 2007

SOURCE: Environment   Canada 2006            . 1 Climate change, in combination with the urban heat island, is expected to exacerbate  Toronto’s warming trend and bring about more intense and prolonged heat waves. The  summer of 2005, for instance, witnessed a record 37 hot days, compared to an average of  13 hot days in the years from 1971 to 2000.  A record number of 48 smog days also  occur [...] Days with temperature   above 30 degrees SOURCE: 40   Environment Days with temperature   Canada, Science 30 above 32 degrees   & Impacts of Climate Change   20 Days with temperature 2002 above 35 degrees     10   0   1961-90 2020s 2050s 2080s  .       3. IMPACT OF HEAT ON HEALTH   Heat waves can pose a great risk to public health, particularly to vulnerable populations  such as the elderly, indiv [...] Extreme heat alert   20 Heat alert SOURCE: Toronto Public   18 Health 2007 2 8   10   3 14 6 3 8 9   0 3 20   2001 2002 2003 2004 2005 2006   Year         Under climate change the number of hot days, associated heat alerts, and heat‐related  illness and mortality are expected to rise. Toronto Public Health and Environment  Canada determined that heat‐related mortality in Toronto averaged 120 death [...] SOURCE: Liu 2003              . 4 Rising annual average temperatures under climate change are expected to shift the  yearly peak for electricity demand from winter to summer months (Liu 2003). Energy  demand for cooling will increase, while demand for heating is expected to decline. The  graph below, illustrates the projected change in electricity demand in Ontario over the  next 75 years. [...] SOURCE: Liu 2003                     Unless steps are taken to cool ambient air temperatures during summer months and/or  reduce electricity demand for cooling, electrical system failure and blackouts may  become increasingly common. While this inconveniences the city and its inhabitants at  large, vulnerable populations such the elderly, young mothers and children in shelters,  and individuals
health environment climate change adaptation air pollution renewable energy conservation climate change adaptation climate change mitigation natural resources electric power transmission environmental pollution transport weather air conditioning emissions climatic changes distributed generation greenhouse efficient energy use urban ecology (sociology) atmosphere of earth smog albedo green roofs urban heat island urban heat island effect air pollution cool roofs
Pages
34
Published in
Canada

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