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As of 2022 Canada was the world's 11th highest emitter of carbon dioxide (CO2) [57] [58] and as of 2021 the 7th highest emitter of greenhouse gases. [59] Canada has a long history of producing industrial emissions going back to the late 19th century.
Canada has one of the heaviest climate debts in the world, with a very long history of producing industrial greenhouse gas emissions. [11] As of 2021 Canada is the 10th heaviest cumulative emitter as assessed by model-based land-use mitigation measures, with 2.6% of cumulative emissions. [12]
Pliocene climate became cooler and drier, and seasonal, similar to modern climates. 2.5 to present: Quaternary glaciation, with permanent ice on the polar regions, many named stages in different parts of the world
This is an accepted version of this page This is the latest accepted revision, reviewed on 24 December 2024. Long-term weather pattern of a region For other uses, see Climate (disambiguation). Atmospheric sciences Atmospheric physics Atmospheric dynamics category Atmospheric chemistry category Meteorology Weather category portal Tropical cyclone category Climatology Climate category Climate ...
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Under the original Köppen climate classification, all places with an average temperature in their coldest month that is colder than -3 °C (26,4 F), are said to have a microthermal climate. The isotherm of -3 °C for the coldest monthly mean temperature, was observed to be the line where the climate was likely cold enough to support a fixed ...
From ancient times, people suspected that the climate of a region could change over the course of centuries. For example, Theophrastus, a pupil of Ancient Greek philosopher Aristotle in the 4th century BC, told how the draining of marshes had made a particular locality more susceptible to freezing, and speculated that lands became warmer when the clearing of forests exposed them to sunlight.
Climate classifications are systems that categorize the world's climates. A climate classification may correlate closely with a biome classification, as climate is a major influence on life in a region. The most used is the Köppen climate classification scheme first developed in 1884.