Climate trends and variability
Environment and Climate Change Canada (ECCC)’s climate research program is an integral part of national and international efforts to understand climate system behaviour, the human influence on climate, and future climate change. Scientists at ECCC provide Canadians with information and data on how Canada’s climate is changing over time. For example, ECCC scientists study the current state of, and trends in, snow and ice in Canada, and investigate how changes are influencing the climate system. ECCC also prepares an annual Climate Trends and Variations Bulletin (CTVB), which communicates how Canada's climate has changed over the recent past and longer, over the period for which ECCC has observations.
Learn more about ECCC’s research to understand the climate state and trends, and access historical climate data records:
Services and information
Climate Trends and Variations Bulletin
Find the latest Climate Trends and Variations Bulletin.
Historical climate data records
Adjusted and homogenized Canadian climate data (AHCCD) and information on how the data is processed.
Snow and ice research
Find out more information on the snow and sea ice research conducted by ECCC scientists.
Climate impacts and outlook
Gulf of Maine, Great Lakes and Saint-Lawrence, Alaska and northwestern Canada.
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