The World Meteorological Organization's (WMO) 2022 Provisional State of the Global Climate report highlights several key findings. Concentrations of greenhouse gases, including carbon dioxide, methane, and nitrous oxide, reached record highs in 2021, with methane levels experiencing the largest annual increase on record. Global mean temperature in 2022 is estimated to be 1.15°C above the 1850-1900 average, with 2022 likely to be the 5th or 6th warmest year on record. La Niña conditions have persisted since late 2020 and are expected to continue through late 2022, marking the third consecutive year of La Niña. Sea level rose in 2022, reaching a new record high, and glacier ice volume in Switzerland decreased by 6% between 2021 and 2022. Overall, the report indicates that the Earth's climate continues to warm and that greenhouse gas concentrations are increasing, leading to rising sea levels and melting glaciers.
