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Publish Date: 29 November 2019
Given current conditions and model outlooks, the chance of ENSO-neutral conditions prevailing during the period December 2019 through February 2020 is estimated at about 65%, while the chances for El Niño and La Niña are 30% and 5%, respectively, according to WMO’s El Niño/La Niña Update.
Publish Date: 12 April 2019
WMO’s Global Atmosphere Watch (GAW) Programme is marking its 30th anniversary this year. The programme, which embraces about 100 countries, aims at forging an integrated global understanding of atmospheric composition and change. It coordinates observations across local to global scales, driving high quality and high-impact science while co-producing society relevant products and services.
Publish Date: 14 March 2019
Recent developments in the climate change arena, including the Paris Agreement in 2015 and the publication of the IPCC Special Report on Global Warming of 1.5 °C, have noted the potential need for negative emission technologies to remove carbon dioxide from the atmosphere in order to limit temperature increase.
Publish Date: 28 February 2019
Increasing levels of airborne pollutants deposited either through gravity (i.e. free-falling) or washed out by rain can result in detrimental effects to crops, human health and vulnerable ecosystems by altering critical and delicate chemical balances. Identifying areas most at risk and which would most benefit from measures to control excessive pollutant load is crucial.
Publish Date: 8 February 2019
The full Scientific Assessment of Ozone Depletion is now available. It shows that actions taken under the Montreal Protocol have led to decreases in the atmospheric abundance of controlled ozone-depleting substances (ODSs) and the start of the recovery of stratospheric ozone.
Publish Date: 31 August 2018
The Greater Horn of Africa Climate Outlook Forum dedicated its 50th session to gender sensitive weather and climate services in order to promote deeper understanding of how men and women have different needs and roles in climate adaptation and disaster risk reduction strategies.
Publish Date: 14 June 2018
Sea surface temperatures in the east-central tropical Pacific as well as most of the overlying atmospheric indicators suggest that ENSO-neutral conditions are prevailing; that is, neither El Niño nor La Niña. Most dynamical and statistical forecast models suggest a continuation of the neutral conditions into the third quarter of 2018. Many models further indicate this period to be marked by a gradual warming of the tropical Pacific, eventually reaching a possible weak El Niño level by the fourth quarter of the year. However, such long-lead ENSO forecasts have substantial uncertainty, mainly...
Publish Date: 5 June 2018
World Environment Day is marked on 5 June to mobilize action in favour of protecting the environment. This year’s theme highlights the need to beat plastic pollution as part of a wider global drive towards a cleaner, healthier planet.
Publish Date: 16 May 2017
Recognizing that expanded and improved observations now make possible a broader assessment of global atmospheric chemistry, the WMO Global Atmosphere Watch programme has published a new report on global and regional trends in reactive gases. This group of gases includes such chemicals as surface ozone, nitrogen oxides, carbon monoxide, sulfur dioxide, and volatile organic compounds, many of which are considered to be harmful pollutants. The first issue of the Reactive Gases Bulletin reviews long-term observation data on volatile organic compounds (VOCs) and discusses past and recent trends....
Publish Date: 20 May 2016
Global temperature records were broken yet again in April for the 12th consecutive month, the longest such streak in the 137-year record of the U.S. National Oceanic and Atmospheric Administration (NOAA ). Overall, 13 out of the 15 highest monthly temperature departures in the record have all occurred since February 2015. NOAA said the combined average temperature over global land and ocean surfaces for April 2016 was 1.10°C (1.98°F) above the 20th century average of 13.7°C (56.7°F) - the highest temperature departure for April since global records began in 1880. This value surpassed the...