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The physical development and ecosystem health of river deltas in cold regions are strongly controlled by ice processes and thus are highly susceptible to the effects of climate change. As an example, [..]
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The lower curve shows the correspondence between river flow and water levels under open-water conditions. The much greater maximum water levels possible under ice-jam conditions are illustrated by the [..]
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In Canada, recent evidence indicates a shortening of the freshwater-ice season over much of the country with the reduction being mainly attributable to earlier break ups. These trends match those in [..]
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The Arctic contains a variety of types of lakes but overall, it is thermokarst lakes and ponds that are the most abundant and productive aquatic ecosystems in the Arctic. They are found extensively in [..]
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The harvest of natural resources is a key feature of traditional lifestyles and economies throughout the Arctic, and a continuing reliance on it as a mainstay of indigenous existence in the north is [..]
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In northwestern North America, recent warming has led to a dramatic increase in the number of days of above freezing temperatures during the migration period for the caribou (Rangifier tarandus). [..]
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The harvest of natural resources is a key feature of traditional lifestyles and economies throughout the Arctic, and a continuing reliance on it as a mainstay of indigenous existence in the north is [..]
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Depending on the definition of the boundaries of the region, the Arctic is home to some 4 million inhabitants. Roughly one-third of this total population is indigenous peoples, spread over numerous [..]
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Over recent years, the southern limit of permafrost in northern peatlands has retreated by 39 km on average and by as much as 200 km in some parts of Arctic Canada. Although regional warming by 1.32°C [..]
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A large iron mine, operated by the Baffinland Iron Mines Corporation, has now been proposed in Baffin Island, with possibly severe impacts on wildlife on the island, such as development across the [..]
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Temperature monitoring in Canada indicates a warming of shallow permafrost over the last two to three decades. Since the mid-1980s, shallow permafrost (upper 20-30 m) has generally warmed in the [..]
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The Mackenzie Valley in Arctic Canada, Northwest Territories, represents one of the main sites for development of fuels extraction in North America. Activities, including the development of pipelines, [..]
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The Mackenzie delta and valley are seeing increased development of infrastructure for oil, pipelines and facilities, and with that comes temporary settlements and roads. This map illustrates the [..]
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The Mackenzie delta and valley in the Northwest Territories, Canada (NWT) has seen a significant increase in the oil prospecting and exploration activity. This map shows the increase, over time, of [..]
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The Arctic is often described as a place of utter darkness or white snow in winter and of midnight sun during the summertime. In fact, there are few places on Earth where the sun displays so much [..]
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