Environment and Climate Change Canada

This map shows the projected change in mean precipitation for 2046-2065, with respect to the reference period of 1986-2005 for RCP2.6, expressed as a percentage (%) of mean precipitation in the reference period. The median projected change across the ensemble of CMIP5 climate models is shown....

This map shows the projected change in mean precipitation for 2081-2100, with respect to the reference period of 1986-2005 for RCP4.5, expressed as a percentage (%) of mean precipitation in the reference period. The median projected change across the ensemble of CMIP5 climate models is shown....

This map shows the projected average change in mean temperature (°C) for 2081-2100, with respect to the reference period of 1986-2005 for RCP2.6. The median projected change across the ensemble of CMIP5 climate models is shown. For more maps on projected change, please visit the Canadian...

Lake sediment cores were collected from several locations in Canada as part of the historic mercury and heavy metal deposition trend, analysis, and research component of the Clean Air Regulatory Agenda/Climate Change and Air Pollutant (CARA/CCAP) and Oil Sands Monitoring (OSM) programs. The...

The Canada’s Changing Climate Report (www.changingclimate.ca/CCCR2019), led by Environment and Climate Change Canada, is about how and why Canada’s climate has changed and what changes are projected for the future. Datasets supporting the results produced for the Canada’s Changing Climate report...

High-resolution statistically downscaled climate indices relevant to climate change impacts in Canada are available at a 10 km spatial resolution and an annual temporal resolution for 1951-2100. The climate indices are based on model projections from 24 global climate models (GCMs) that...

The Experimental Lakes Area (ELA), in Ontario, Canada, is a sensitive region for heavy metal contamination, such as mercury, in part due to long-range atmospheric deposition from global and regional industrial regions. The region is remote from industrial centres, but is downwind of major...

The data consists of temperature indices based on homogenized daily maximum and minimum temperatures at 338 locations across Canada, and of precipitation indices based on adjusted daily rainfall, daily snowfall and daily precipitation amounts at 463 locations across the country. These indices...

The integrated pan-Arctic snow melt onset dataset was generated by combining active and passive microwave satellite derived estimates for northern high latitude land surface, ice caps, large lakes, and sea ice (Wang et al., 2011). This dataset allows snow melt dynamics to be examined in a full...

Kejimkujik National Park, in Nova Scotia, Canada, is a sensitive region for heavy metal contamination, such as mercury, in part due to long-range atmospheric deposition from global and regional industrial regions. The region is remote from industrial centres, but is downwind of major pollution...

The Flin Flon copper–zinc smelter is a site of concern as it has been the largest single source of atmospheric mercury emissions in Canada until operations ceased on July 1, 2010. The smelting and mining activities resulted in mercury contamination to the local environment. Elevated levels of...

The Canadian Environmental Sustainability Indicators (CESI) program provides data and information to track Canada's performance on key environmental sustainability issues. Indicators of Temperature change in Canada show the yearly and seasonal surface air temperature departures for the years 1948...

This series includes maps of projected change in mean precipitation based on CMIP5 multi-model ensemble results for RCP2.6, RCP4.5 and RCP8.5, expressed as a percentage (%) of mean precipitation in the reference period. The median projected change across the ensemble of CMIP5 climate models is...

This series includes maps of projected average change in mean temperature (°C) based on CMIP5 multi-model ensemble results for RCP2.6, RCP4.5 and RCP8.5 (based on the 50th percentile of the distribution of the CMIP5 ensemble). Maps are provided for three time periods: 2016-2035, 2046-2065 and...

The Canadian Environmental Sustainability Indicators (CESI) program provides data and information to track Canada's performance on key environmental sustainability issues. The Precipitation change in Canada indicator measures the annual and seasonal precipitation departures (or anomalies) for the...

The Canadian Environmental Sustainability Indicators (CESI) program provides data and information to track Canada's performance on key environmental sustainability issues. The Precipitation change in Canada indicator measures the annual and seasonal precipitation departures (or anomalies) for the...

The Canadian Environmental Sustainability Indicators (CESI) program provides data and information to track Canada's performance on key environmental sustainability issues. Indicators of Temperature change in Canada show the yearly and seasonal surface air temperature departures for the years 1948...