Resource Development and Forest Loss Accelerate Global Warming

Resource extraction within the Boreal Forest – such as logging, Tar Sands development, and mining – accelerates global warming. The rapid deforestation of Canada’s Boreal Forest and other industrial activities, such as Tar Sands oil production, imperils the massive tonnage of carbon stored in the vegetation and soils. The release of this carbon into the atmosphere as a product of human development could have dire consequences.¹

Logging is one of the leading culprits of global warming. Deforestation accounts for the release of approximately 1.6 billion tons of carbon into the atmosphere each year.  This represents one fifth of all carbon released from human activities.²  

The process of harvesting forest and processing it into wood or paper products releases large amounts of oxidized carbon into the air. Approximately 20-25% of global, human-caused, carbon emissions in the last century have been a direct result of deforestation and logging.³ After an area has been logged, the leftover decomposing material and the exposed forest floor dry out and release CO2 into the air. Carbon stored in soil and peat oxidizes when uncovered or turned over from the impacts associated with logging. Also, some stored carbon is released into the atmosphere immediately upon the harvesting of a tree, and most of the remaining carbon is eventually released throughout the process of turning the tree into a forest product, such as paper.⁴

Rapid and extensive logging in the Boreal Forest exacerbates global warming. At least 100 million acres of Canada’s Boreal Forest (an area similar in size to California) is slated for commercial logging in the coming decade.All the logging in Canada currently releases about 200 million tons of carbon into the atmosphere per year, and 120 million of these tons are from logging specifically in the Boreal.⁵  Logging in Canada releases four times as much carbon as all of Canada’s passenger cars.⁶

Oil and gas development and mining in the Boreal contribute to an already dangerous pace of warming. Because the North American Boreal is almost entirely forested, all developments, such as mining, hydroelectric, and Tar Sands oil production, necessitate logging in the Boreal. This additional clearing accelerates global warming.⁷

Tar Sands development releases harmful quantities of greenhouse gases into the atmosphere: The Tar Sands development in Alberta is the single largest contributor to the growth in greenhouse gas emissions in Canada.⁸ Substantial areas of surface are impacted by seismic lines required for exploration, access roads, pipelines, well sites, and power corridors. The clearing associated with oil production and exploration also releases carbon into the atmosphere.⁹ Learn more about the Alberta Tar Sands >

Tar Sands oil and its production process are both unusually damaging to the atmosphere. The oil extracted from Tar Sands is the world’s most harmful oil when burned because it emits the highest volumes of greenhouse gases into the atmosphere. These emissions include nitrogen oxides, sulphur dioxide, and carbon dioxide – all of which are harmful.¹⁰ Tar Sands oil production generates almost three times as much greenhouse gas as conventional oil production. This is because massive amounts of energy are needed in order to extract, upgrade, and refine the raw sands.¹¹ By 2015, the Tar Sands developments alone are expected to emit more than half of the carbon dioxide emissions of the state of New York.¹² Learn more about the Alberta Tar Sands >

Human disturbance in the Boreal is triggering a vicious cycle of warming. For example, as global temperatures rise, peatlands and forest stands are projected to undergo drying which releases carbon and which also makes them more vulnerable to wildfires, wherein additional carbon would be released into the atmosphere.^13,14 Healthy forests that retain their natural complexity and diversity (e.g., in age and habitat structure) generally have greater stability and resilience to withstand disturbances associated with climate change.¹⁵

¹ Schindler, D.W. A dim future for boreal waters and landscapes. Bioscience, 48 (3): 157-165. (1998)
² IPCC Report from working group 1:Policymakers Summary of the Scientific Assessment of Climate Change. (1990)
³ Land Use, Land Use Change, and Forestry. Special Report by the IPCC. (2000)
⁴ Ibid.
⁵ Kyoto guidelines state that 1m3 of timber contains about 1 tonne of CO2. Under Kyoto rules, all carbon must be counted as released when the tree is cut. In reality, the carbon oxidizes over several years as the products are processed, decay or are burned. Component information source: Natural Resources Canada, The State of Canada’s Forests, p.18. (2002-3)
⁶ Ibid
⁷ Schindler, D.W. A dim future for boreal waters and landscapes. Bioscience, 48 (3): 157-165. (1998)
⁸ Woynillowicz, D.et al. Oil Sands Fever, the implications of Canada’s Oil Sands Rush. Pembina Institute Report. (2005).
⁹ Ibid
¹⁰ Ibid
¹¹ Ibid
¹² In 2003 CO2 emissions for the state of New York totaled 214 million metric tones. EIA State Emissions by year. Bordetsky, Ann et.al. Driving it Home: Choosing the Right Path for Fueling North America’s Transportation Future. NRDC, Western Resource Advocates, and Pembina Institute. P7, (2007).
¹³ Tarnocai, C. The effect of climate change on carbon in Canadian peatlands. Global and Planetary Change, 53:222-232. (2006)
¹⁴ Randerson, JT et al. The Impact of Boreal Forest Fire on Climate Warming. Science, 2006. Vol. 314: 1130-1132.
¹⁵ Wayburn, L.A., F.J. Franklin, J.C. Gordon, C.S. Blinkey, D.J. Mlandenoff, and N.L. Christian, Jr. Forest Carbon in the United States: Opportunities & Options for Private Lands. The Pacific Forest Trust, Inc. Santa Rosa, CA. (2000)