New Delhi: Heatwaves, floods, droughts, wildfires and rapidly intensifying tropical cyclones caused misery and mayhem, upending everyday life for millions and inflicting many billions of dollars in economic losses, according to the WMO State of the Global Climate 2023 report.
The WMO report confirmed that 2023 was the warmest year on record, with the global average near-surface temperature at 1.45 °Celsiu above the pre-industrial baseline. It was the warmest ten-year period on record.
“Sirens are blaring across all major indicators. Some records aren’t just chart-topping, they’re chart-busting. And changes are speeding up.” said United Nations Secretary-General António Guterres.
“Never have we been so close – albeit temporarily at the moment – to the 1.5° C lower limit of the Paris Agreement on climate change,” said WMO Secretary-General Celeste Saulo.
“Climate change is about much more than temperatures. What we witnessed in 2023, especially with the unprecedented ocean warmth, glacier retreat and Antarctic sea ice loss, is cause for particular concern,” she said.
On an average day in 2023, nearly one-third of the global ocean was gripped by a marine heatwave, harming vital ecosystems and food systems.
Towards the end of 2023, over 90% of the ocean had experienced heatwave conditions at some point during the year.
The global set of reference glaciers suffered the largest loss of ice on record (since 1950), driven by extreme melt in both western North America and Europe, according to preliminary data.
Antarctic sea ice extent was by far the lowest on record, with the maximum extent at the end of winter at 1 million km2 below the previous record year – equivalent to the size of France and Germany combined.
The number of people who are acutely food insecure worldwide has more than doubled, from 149 million people before the COVID-19 pandemic to 333 million people in 2023.
Weather and climate extremes may not be the root cause, but they are aggravating factors, according to the report.
On climate financing, the report said Climate finance flows represent only approximately 1% of global GDP, according to the Climate Policy Initiative.
In 2021-22, global climate-related finance flows reached almost USD 1.3 trillion, nearly doubling compared to 2019-20 levels.
It mentioned that there is a large financing gap. In an average scenario, for a 1.5°C pathway, annual climate finance investments need to grow by more than six times, reaching almost USD 9 trillion by 2030 and a further USD 10 trillion through to 2050.
The report said adaptation finance continues to be insufficient.
“Though adaptation finance reached an all-time high of USD 63 billion in 2021/2022, the global adaptation financing gap is widening, falling well short of the estimated USD 212 billion per year needed up to 2030 in developing countries alone” it said.
