51勛圖

WMO

Tropical Cyclone Freddy has been officially recognized by the WMO as the on record, lasting 36 days and covering approximately 12,785 kilometers across the Indian Ocean basin.

Watch the 2050 forecast , created in partnership with the  and The Weather Channel. The campaign is part of s efforts to boost awareness on the impacts of climate change and to mobilize people around the world to take meaningful climate action for future generations. 

A new report from the (WMO) shows that records were once again broken, and in some cases smashed, for greenhouse gas levels, surface temperatures, ocean heat and acidification, sea level rise, Antarctic sea ice cover and glacier retreat.

The congratulates its winners of the 2024 Calendar photo competition based on the theme: At the frontline of climate action.

2023 has shattered climate records, accompanied by extreme weather which has left a trail of devastation and despair, confirms. 

The concentration of heat-trapping greenhouse gases in the atmosphere reached a new record level last year. This is part of an upward trend with no end in sight, according to the (WMO). The UN agencys latest compares the gas concentration levels with the previous year and with preindustrial levels. It warns that the rising concentration of greenhouse gases in the atmosphere will lead to a rise in temperature, extreme weather conditions, and a rise in sea levels.

warns that the ongoing El Ni簽o event is expected to last at least until April 2024, influencing weather patterns and contributing to a further spike in temperatures, both on land and in the ocean.

According to the new by the , the hydrological cycle is being disrupted by climate change and human activities. Droughts, heavy rainfall, and melting ice are causing significant damage to both lives and economies and threaten the long-term water security of many millions of people. Considering that the overwhelming majority of disasters are water-related, the report urges increased data sharing for early warnings and more coordinated water management as part of climate action.

El Ni簽o is coming, warns . Early warnings and anticipatory action of extreme weather events associated with this major climate phenomenon are vital to save lives and livelihoods. 

The likelihood of El Ni簽o developing this year is increasing, according to - creating opposite impacts on weather and climate patterns to La Ni簽a that would fuel higher global temperatures.

Climate change continued its advance in 2022, according to the annual report from the . Droughts, floods and heatwaves affected communities on every continent and cost billions of dollars. Antarctic sea ice fell to its lowest extent on record and the melting of some European glaciers was great. The shows the planetary scale changes on land, in the ocean and in the atmosphere caused by record levels of heat-trapping greenhouse gases. The years 2015-2022 were the eight warmest on record despite the cooling impact of a La Ni簽a event for the past three years.

Our weather, climate, and water cycle know no boundaries. International cooperation is essential to contending with our changing climate.   (23 March) is a reminder of it. This year, the observance day also marks s 150th anniversary. Throughout this time, meteorological services have worked around the clock to collect and standardize data that underpin the weather forecasts we now take for granted. The history of WMO is a remarkable story of scientific vision, technological development, and a unique cooperation system to serve society. !

reports that 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. A UN-backed panel to the on Ozone Depleting Substances , published every four years, confirms the phase out of nearly 99% of banned ozone-depleting substances has succeeded in safeguarding the ozone layer, leading to notable recovery of the ozone layer in the upper stratosphere and decreased human exposure to harmful ultraviolet (UV) rays from the sun.

An anticipated rise in the frequency, intensity and duration of heatwaves and an associated increase in wildfires this century is likely to worsen air quality, harming human health and ecosystems. The interaction between pollution and climate change will impose an additional climate penalty for hundreds of millions of people, according to a from the World Meteorological Organization (). The climate penalty refers specifically to the climate change amplification effect on ground-level ozone production, which negatively impacts the air people breathe.

As the globe warms, wildfires and associated air pollution are expected to increase, even under a low emissions scenario. In addition to human health impacts, this will also affect ecosystems as air pollutants settle from the atmosphere to Earths surface, says .

Weather, climate and water extremes are becoming more frequent and intense as a result of climate change.  Impact-based forecasts that inform the public of what the weather will do are vital to save lives and livelihoods. Yet one in three people are still not adequately covered by early warning systems. Greater coordination between hydrometeorological services and disaster management authorities is fundamental. This Day (23 March) spotlights the vital importance of Hydrometeorological and Climate Information for Disaster Risk Reduction.