The Year’s Weather – A eventful 2022 Globally, 2022 is likely to be the fifth or sixth warmest year on record according to the World Meteorological Organization’s preliminary assessment. Global mean sea level continued to rise, reaching a new record high in 2022. In Hong Kong, with a record-breaking hot July and the warmest autumn from September to November, the weather was warmer than usual in 2022 with an annual mean temperature of 23.9 degrees, the sixth warmest since records began in 1884.
The Weather of December 2022 – a colder December With stronger than normal northeast monsoon affecting southern China in the month, the weather of Hong Kong was colder than usual in December 2022. The monthly mean temperature was 16.6 degrees, 1.6 degrees below the normal figure of 18.2 degrees. The annual total rainfall of 2205.4 millimetres in 2022 was about 9 percent below the annual normal of 2431.2 millimetres.
Past eight years confirmed to be the eight warmest on record The past eight years were the warmest on record globally, fueled by ever-rising greenhouse gas concentrations and accumulated heat, according to six leading international temperature datasets consolidated by the World Meteorological Organization. The average global temperature in 2022 was about 1.15 [1.02 to 1.27] °C above the pre-industrial (1850-1900) levels. 2022 is the 8th consecutive year (2015-2022) that annual global temperatures have reached at least 1°C above pre-industrial levels, according to all datasets compiled by WMO.
Ozone layer recovery is on track, helping avoid global warming by 0.5°C The ozone layer is on track to recover within four decades, with the global phaseout of ozone-depleting chemicals already benefitting efforts to mitigate climate change. This is the conclusion of a UN-backed panel of experts. Examining novel technologies such as geoengineering for the first time, the panel warns of unintended impacts on the ozone layer.
Hurricanes and floods bring $120bn in insurance losses in 2022 Losses from natural catastrophes covered by insurance totalled around $120 billion last year, similar to 2021, though short of 2017’s record damages, Munich Re, the world’s largest reinsurer, said. “Weather shocks are on the rise. We can’t directly attribute any single severe weather event to climate change. But climate change has made weather extremes more likely.” Ernst Rauch, chief climate scientist at Munich Re, said.