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Report (PDF):
https://library.wmo.int/viewer/68835/d ownload?file=1347_Statement_2023_en.pdf&type=pdf&navigator=1

Key messages:
2023 was the warmest year on record at 1.45 ± 0.12 °C above the pre-industrial average.

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Report (PDF):
https://library.wmo.int/viewer/68835/d ownload?file=1347_Statement_2023_en.pdf&type=pdf&navigator=1

Key messages:
2023 was the warmest year on record at 1.45 ± 0.12 °C above the pre-industrial average.

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Concentrations of the three main greenhouse gases – carbon dioxide, methane, and nitrous oxide – reached record high observed levels.

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Concentrations of the three main greenhouse gases – carbon dioxide, methane, and nitrous oxide – reached record high observed levels.

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Ocean heat content reached its highest level in the 65-year observational record.

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Ocean heat content reached its highest level in the 65-year observational record.

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Global mean sea level reached a record high. The rate of sea level rise in the past ten years (2014–2023) has more than doubled since the first decade of the satellite record (1993–2002).

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Global mean sea level reached a record high. The rate of sea level rise in the past ten years (2014–2023) has more than doubled since the first decade of the satellite record (1993–2002).

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Antarctic sea-ice extent reached an absolute record low in February. The annual maximum extent was around 1 million km2 below the previous record low maximum.

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Antarctic sea-ice extent reached an absolute record low in February. The annual maximum extent was around 1 million km2 below the previous record low maximum.

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Preliminary data from the global set of reference glaciers for the hydrological year 2022-2023 show
they experienced the largest loss of ice on record (1950–2023), driven by extremely negative mass balance in both western North America and Europe.

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Preliminary data from the global set of reference glaciers for the hydrological year 2022-2023 show
they experienced the largest loss of ice on record (1950–2023), driven by extremely negative mass balance in both western North America and Europe.

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Glaciers in Switzerland lost around 10% of their remaining volume in the past two years.

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Glaciers in Switzerland lost around 10% of their remaining volume in the past two years.

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Extreme weather continued to lead to severe socio-economic impacts. Extreme heat affected many parts of the world.
Wildfires in Hawaii, Canada and Europe led to loss of life, the destruction of homes and large-scale air pollution. Flooding associated with extreme rainfall from Mediterranean Cyclone Daniel affected Greece, Bulgaria, Türkiye, and Libya with particularly heavy loss of life in Libya.

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Extreme weather continued to lead to severe socio-economic impacts. Extreme heat affected many parts of the world.
Wildfires in Hawaii, Canada and Europe led to loss of life, the destruction of homes and large-scale air pollution. Flooding associated with extreme rainfall from Mediterranean Cyclone Daniel affected Greece, Bulgaria, Türkiye, and Libya with particularly heavy loss of life in Libya.

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Food security, population displacement and impacts on vulnerable populations continue to be of mounting concern in 2023, with weather and climate hazards exacerbating the situation in many parts of the world

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Food security, population displacement and impacts on vulnerable populations continue to be of mounting concern in 2023, with weather and climate hazards exacerbating the situation in many parts of the world

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Key priorities for ensuring more and better climate finance include: transforming the financial system with an emphasis on concessional financing and de-risking; bridging climate and development needs, harnessing synergies to deliver co-benefits for both people and nature; mobilizing domestic capital, with an emphasis on enabling policies and regulatory frameworks; and improving the availability and accessibility of quality, granular data to measure and manage progress.

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Key priorities for ensuring more and better climate finance include: transforming the financial system with an emphasis on concessional financing and de-risking; bridging climate and development needs, harnessing synergies to deliver co-benefits for both people and nature; mobilizing domestic capital, with an emphasis on enabling policies and regulatory frameworks; and improving the availability and accessibility of quality, granular data to measure and manage progress.

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Figure 26. Global tracked climate finance and average estimated annual needs through 2050.
Source: Climate Policy Initiative