Climate change is widely recognized as the most urgent problem facing humanity. We know that human activity is warming the Earth. And we know we have the knowledge, technologies, and resources to solve the problem, in ways that support the most vulnerable nations and communities.

Earth’s atmosphere is part of a global system that keeps the temperature of the planet within a habitable range. Since the dawn of the Industrial Revolution, humans have been altering the composition of the atmosphere by burning fossil fuels, including coal, oil, and gas. The resulting carbon dioxide (CO2) builds up in the atmosphere, creating the greenhouse effect. The greenhouse effect traps energy from the sun and raises the temperature of the Earth, and this rising temperature is what most people mean when they refer to global warming or climate change. Other important greenhouse gases include methane produced mainly by natural gas production and livestock, nitrous oxide from nitrogen-based fertilizers, and hydrofluorocarbons.

The wide-ranging impacts of climate change are already being felt: economically, environmentally, and socially. All of these impacts are connected, so that worsening one problem can contribute to another. That also means that tackling greenhouse gas emissions can create cascading benefits in different areas…

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Climate change is the challenge of our time. Fortunately, we have solutions to drastically reduce climate-disrupting emissions. Together, we can work toward cleaner air, healthier communities and a more stable climate in Canada.

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