Mr. Speaker, I am very pleased to have this opportunity to speak in support of Bill C-579, an act to reduce the effects of urban heat islands on the health of Canadians. I would like to congratulate my colleague for Honoré-Mercier for bringing this bill before us.
As the urban affairs critic for our NDP caucus and also the sponsor of Bill C-619, the climate change accountability act, I am very excited to have a discussion in this place about the impacts of climate change on cities, on the health of Canadians living in urban Canada and about the great opportunities that present themselves to us for mitigating climate change and improving the health of Canadians by focusing attention on Canada's cities.
The discussion is particularly timely as countries gather in Lima, Peru at the Conference of the Parties to the United Nations Framework on Climate Change with the goal of putting in place, by next year in Paris, the agreement necessary to avoid dangerous levels of global warming. To succeed, that agreement needs to include the world's largest emitters.
While the Conservative government likes to point to the fact that Canada is responsible for only 2% of global emissions, that places us within the top 10 greenhouse gas emitters globally. Looking globally, there appears to be positive momentum in that direction. Specifically, the recent agreement between the world's largest emitters, China and the U.S., holds out promise that we have turned a corner on this issue.
Only five years ago, in Copenhagen, these two countries pointed fingers at each other, accusing each other of sinking global efforts at mitigation. However, with this agreement, things will change. China has agreed to slow and then halt greenhouse gas emission growth by 2030. The U.S. has agreed to reduce emissions by nearly 30% by the same date.
Therefore, things will change, but it is also worth noting that this agreement stands as a clear sign that things have already changed. The simplistic contradistinction between economic growth and emission reductions no longer stands. There are new energy economies that these countries are engaged in and can profit from.
Last week's report from Clean Energy Canada tells us that things have changed in Canada, too, and will continue to change. In that same five-year period since Copenhagen, Canada, in the absence of federal support I would note, has seen its capacity to produce electricity from renewable energy sources increase sufficiently to power 2.7 million Canadian homes, and the clean energy industry in Canada is still in its infancy.
Also relevant to today's discussion is the impact of the health effects of climate change. As reported recently in the The Guardian newspaper, in China:
Air quality is so far below World Health Organisation standards that a blue sky appears only after it rains, or when the government closes steel mills around Beijing and bans drivers from highways for major summits...
Of particular relevance to the bill before us, it is heartening to see that that U.S.-China agreement acknowledges the role of cities as final-energy users and, consequently, as significant greenhouse gas emitters. The Climate-Smart/Low-Carbon Cities initiative that forms part of that agreement recognizes the great potential of cities as sites of climate change mitigation.
Now, of course, the times do not look particularly propitious for us in Canada in light of the revelation this week that the Conservative government, contrary to its commitment, has no intention of regulating emissions in the oil and gas industry.
However, it is the nature of government that it changes. Governments come and they go, but a government that breaks its commitment on such a significant, indeed, existential issue, one hopes will go quickly, and a government that calls regulating what it had once committed to regulate “crazy”, one hopes will fall harder and faster than most.
Now, as per the bill, we are talking specifically about urban heat islands. The call in the bill is for the Minister of Health to establish a national strategy to reduce the negative effects of heat islands.
Urban heat islands are understood to be urban environments in which the average air temperature is markedly greater as compared to the average or, in particular, that of the surrounding rural environment. The effect is well known and has been well studied, precisely because of the serious impacts of urban heat islands on human health. Annual average temperatures tend to be 3.5° to 4.5° higher in cities than in surrounding rural areas. According to the OECD, this difference—and note that it is in average annual temperature—is expected to increase by 1° per decade to a difference of about 10° in large cities. In other words, the heat island effect is significant presently and anticipated to get significantly worse over time.
It has been estimated, for example, that maximum average temperatures in my city of Toronto will rise by 7° by mid-century. That means that the extreme climate events, such as heat waves, which we are experiencing as a result of generalized global warming, will also become worse in urban areas as a result of the heat island effect, or more properly the conditions that give rise to the heat island effect. Those conditions relate, in the main, to the type of infrastructure we find in urban environments and the particular materials it is made of, as well as the colour of those materials. Surface materials such as concrete and asphalt, including asphalt roofing shingles, are particularly problematic. This kind of infrastructure tends to absorb large amounts of solar radiation and release it in the form of heat, thus creating heat islands. The increasing daytime temperature, in turn, tends to trigger a vicious circle as it interferes with natural nighttime cooling processes, but it also triggers artificial cooling efforts, such as air conditioning, that add to the heat island effect.
There are well-documented health implications of extreme heat and heat islands. It is fair to say that, around the world, the effects of urban heat islands on human health are being documented by health and environmental agencies. The health outcomes vary from simply heat fatigue to death.
According to studies conducted by the American Ernest O. Lawrence Berkeley Laboratory, every 1°C increase in warm weather temperature increases the pollution caused by smog by some 5%. Smog generally forms above urban areas and heat islands, and adds to water pollution and air pollution. Smog is one of the main causes of the increase in the number of cases of asthma, throat irritation, and even premature death.
It is worth noting that not all are affected equally by heat island effects. Some people are more vulnerable to health impacts than others. Seniors and youth are particularly vulnerable, but so also are the poor, the disabled, shut-ins, the homeless, and those unable to afford or without access to air-conditioned shelter. There is clearly and notably a social equity issue. This is a matter of climate justice and not just a generalized matter of human health.
Let me end with what I think is some good news. About 80% of Canadians live in urban Canada. Urban Canada is responsible for a commensurate percentage of final energy use and consequently a commensurate percentage of greenhouse gas emissions. Not the current government, obviously, but people around the world who are concerned about the future of this planet, people committed to halting global warming so as to avoid dangerous levels, are alive to the issue of urban heat islands and their health impacts and dangers. They are also alive to the great climate change mitigation potential of cities. That is why this bill and its focus on urban Canada and urban Canadians, and the need to deal with these issues, holds out such great promise for us and should receive the support of all in this House.
I again thank my colleague for bringing it forward.
