In situ observations of snow water equivalent (SWE) from manual snow surveys and automated sensors are made at ~1000 sites across Canada in support of water resource planning for flood control and hydroelectricity production. These data represent an important source of information for research (e.g. validation of hydrological and climate model models), for applied studies (e.g. snow loads) and for climate monitoring. A data rescue effort in 1998 generated the first version of the Canadian historical snow survey dataset (MSC, 2000) which was subsequently updated in 2004. This update includes data to March 2017 and is provided as bi-weekly 0.1 x 0.1 degree grid box averages to facilitate research applications. Data for individual snow survey sites are also provided but exclude most data from Quebec after 1985 that have access restrictions. Information on data format and contact information for the Quebec data are provided in the "ReadMe" file.

The Greenhouse Gas Reporting Program (GHGRP) collects information on greenhouse gas (GHG) emissions annually from facilities across Canada. It is a mandatory program for those who meet the requirements. Facilities that emit 10 kilotonnes or more of GHGs, in carbon dioxide (CO2) equivalent (eq.) units, per year must report their emissions to Environment and Climate Change Canada. The emissions data is available in two files, each presenting emissions by different breakdowns and offered in two convenient formats for downloads: .xlsx and .csv. The Emissions by Gas file, covering data from 2004 to present, contains emissions (in tonnes and tonnes of CO2 eq.) for each facility categorized by gas type, including carbon dioxide (CO2), methane (CH4), nitrous oxide (N2O), hydrofluorocarbons (HFC), perfluorocarbons (PFC), and sulphur hexafluoride (SF6). The Emissions by Source file, starting from 2022, includes emissions data (in tonnes and tonnes of CO2 eq.) broken down by source category, encompassing Stationary Fuel Combustion, Industrial Process, On-site Transportation, Waste, Wastewater, Venting, Flaring, and Leakage. For additional information and usage guidelines, please refer to the accompanying "Lisez Moi - Read Me" file. Additionally, our data search tool can assist you in efficiently navigating and extracting specific information from the GHGRP's data.