Canada is, on average, experiencing warming at twice the rate of the rest of the world, with Northern Canada warming up at right around three times the global average, according to a new government report.
The study — Canada’s Changing Climate Report (CCCR) — was authorized by Environment and Canada Climate Change. It says that since 1948, Canada’s yearly average temperature over land has warmed 1.7 C, with higher rates found in the North, the Prairies and northern British Columbia.
In Northern Canada, the yearly average temperature has increased by 2.3C
According to the U.S. National Oceanic and Atmospheric Administration (NOAA), since 1948, global average temperatures have increased by about 0.8 C.
Alongside these temperature increases, the CCCR says Canada is experiencing increases in precipitation (especially in winter), “extreme fire weather” and water supply shortages in summer, and a heightened risk of coastal flooding.
The report was created by government researchers from the ministries of Environment and Climate Change, Fisheries and Oceans and Natural Resources, with contributions from university experts.
The archive says that while warming in Canada has been the result of both human activity and natural varieties in the atmosphere, “the human factor is dominant,” especially emissions of greenhouse gases.
Flooding, drought risks
Increasing warmth has had various impacts in Canada, including greater precipitation, the report says.
The creators’ perceptions demonstrate that yearly precipitation has increased crosswise over Canada since 1948, with larger increases in Northern Canada and parts of Manitoba, Ontario, northern Quebec, and Atlantic Canada. Warming also has led to a reduction in how much snowfall accounts for total precipitation in Southern Canada.
In spite of the fact that flooding is regularly the aftereffect of numerous components, increasingly serious precipitation will increment urban flood risks.
Warming additionally will intensify the seriousness of warmth waves and contribute to higher dangers of a dry spell and out of wildfires.
The report says that extreme warmth occasions — which right now happen at regular intervals by and large — will happen once at regular intervals by the center of the century under a low-outflows situation, and each other year in a high-discharges scenario.
Low- and high-emission scenarios
The report’s early release saw it turn out as the federal government’s carbon pricing plan was going into effect in Manitoba, New Brunswick, Ontario, and Saskatchewan.
Ottawa has imposed a fuel levy in these provinces as a backstop because they don’t have carbon-pricing schemes of their own in place.
The report stresses that endeavors to diminish ozone-depleting substance emanations in the coming decades will have “an increasing impact on the amount of additional warming beyond this time frame.”
The report says the national annual normal temperature increase projected for the late century, compared to the reference period of 1986-2005, ranges from a “low-emission scenario” of 1.8 C to a “high-emission scenario” of 6.3 C.
Observed changes in Annual Temperature 1948 and 2016
As indicated by the now released report, the best way to keep global temperature global in accordance with the objectives set by countries at the Paris climate summit in 2015 is for “global emissions to peak almost immediately, with rapid and deep reductions thereafter.”
The report also predicts that under a medium-emission scenario, glaciers in Canada’s west will lose between 74 percent and 96 percent of their volume by the end of the century.
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