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Using samples from the archive, measurements of atmospheric levels of greenhouse gases, ozone-depleting substances, and other trace gases became possible. [2] After collection, every sample is analyzed and amounts of trace gases are recorded and verified with concurrent Cape Grim data.
Among these 31 stations, Alert is one of three greenhouse gas "intercomparison supersites", [2] along with Mauna Loa in Hawaii and Cape Grim in Australia, which, due to their locations far from industrial activity, provide the international scientific community with a baseline record of atmospheric chemistry.
The warming influence (called radiative forcing) of long-lived greenhouse gases has nearly doubled in 40 years, with carbon dioxide and methane being the dominant drivers of global warming. [21] Radiative forcing (warming influence) of different contributors to climate change through 2019, as reported in the Sixth IPCC assessment report .
Cape Grim, officially Kennaook / Cape Grim, [2] is the northwestern point of Tasmania, Australia.The Peerapper name for the cape is recorded as Kennaook. [3]It is the location of the Cape Grim Baseline Air Pollution Station and of the Cape Grim Air Archive [4] which is operated by the Australian Bureau of Meteorology [5] in a joint programme with the CSIRO.
Tetrachloro-1,1-difluoroethane was first detected in air collected from Cape Grim, Tasmania in the Cape Grim Air Archive, and later from air bubbles in snow from Greenland. The substance made its first appearance around 1965, and increased in level until around 2000. [ 11 ]
As a direct consequence of the pandemic, an 8% reduction in greenhouse gas emissions was projected for 2020, which would be the largest 1-year decline on record. [22] However, this reduction was a result of reduced economic activity, not the decarbonization of the economy required to respond to climate change.
This is a list of sovereign states and territories by per capita greenhouse gas emissions due to certain forms of human activity, based on the EDGAR database created by European Commission. The following table lists the 1970, 1990, 2000, 2010, 2020, 2021, 2022 and 2023 annual per capita GHG [ n 1 ] emissions estimates (in metric tons of CO 2 ...
Global map of greenhouse gas (GHG) emissions, including agriculture and land use change, measured in carbon dioxide-equivalents over a 100-year timescale. [1] Annual GHG emissions by region, including agriculture and land use change, measured in carbon dioxide-equivalents over a 100-year timescale [2] Per capita annual GHG emissions, including agriculture and land use change, measured in ...