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161 contents match your search.
Ozone research managers say no room for complacency on ozone layer recovery
News
Ozone, Environment, Observations, Climate
Publish Date: 29 July 2021
Ozone experts from around the world have stressed the importance of systematic observations to monitor the state of the ozone layer and the presence of ozone-depleting substances, and to increase understanding of the impact of climate change on the Earth’s protective shield against harmful ultraviolet rays.
Role of Amazon as carbon sink declines: Nature study
News
Environment, Climate change, Greenhouse gases
Publish Date: 20 July 2021
Amazonia hosts the Earth’s largest tropical forests and has been shown to be an important carbon sink. This carbon sink seems to be in decline, however, as a result of factors such as deforestation and climate change, according to a new paper published in Nature.
WMO issues Airborne Dust Bulletin
News
Environment, Sand and Dust Storms
Publish Date: 7 July 2021
WMO has issued its annual Airborne Dust Bulletin on the incidence and hazards of sand and dust storms in 2020. The impacts on health, the environment and economies have been highlighted once again this year as massive sand plumes have darkened skies and affected air quality in many parts of Africa, Asia, the Americas and Europe and travelled hundreds of miles over the Atlantic.
Northern hemisphere wildfire season flares up
News
Environment, Climate change, Pollution
Publish Date: 6 July 2021
The 2021 Boreal wildfire season in the Northern Hemisphere is heating up, with a large and increasing number of intense fires; most notably across northeastern Russia, western Canada and the western United States.
WMO Executive Council meets
News
Weather, Climate, Meteorology, Water, Environment, Observations, Data exchange
Publish Date: 14 June 2021
The World Meteorological Organization’s Executive Council meets in virtual session from 14 to 25 June , with a focus on strengthening and scaling up weather, climate, water and environmental-related services to meet ever growing needs. It will also discuss a major update to WMO’s data policy, closing the gap in the global observing system and a plan of action for hydrology.
Ecosystem restoration is vital for climate, biodiversity
News
Environment, Climate change, Oceans
Publish Date: 4 June 2021
Facing the triple threat of climate change, loss of nature and pollution, the world must deliver on its commitment to restore at least one billion degraded hectares of land in the next decade – an area about the size of China. Countries also need to add similar commitments for oceans, according to a new report by the UN Environment Programme (UNEP) and the Food and Agriculture Organization of the UN (FAO).
WMO Aerosols Bulletin focuses on fires
News
Environment
Publish Date: 10 May 2021
A new World Meteorological Organization bulletin on Aerosols examines the impact of biomass burning (wildfires and open burning for agriculture) on climate and air quality. It covers the episodes of the 2019/2020 Australian bushfires, the 2015 Indonesia peatfires and smoke transport from boreal forest fires to the Arctic.
Global methane assessment released
News
Climate change, Greenhouse gases, Environment
Publish Date: 7 May 2021
A Global Methane Assessment released by the Climate and Clean Air Coalition (CCAC) and the United Nations Environment Programme (UNEP) shows that human-caused methane emissions can be reduced by up to 45 per cent this decade.
Aerosols
Environment
The impact of aerosols on the atmosphere is widely acknowledged as one of the most significant and uncertain aspects of climate change projections. The observed global warming trend is considerably less than expected from the increase in greenhouse gases, and much of the difference can be explained by aerosol effects. Aerosols impact climate through direct scattering and absorption of incoming solar radiation and trapping of outgoing long-wave radiation as well as through alteration of cloud optical properties and the formation of clouds and precipitation.
2021 is “make or break year” for Climate Action
News
Climate change, Weather, Climate, Disaster risk reduction, Observations, Oceans, Environment
Publish Date: 20 April 2021
2021 must be the year for climate action – “the make it or break it year,” said United Nations Secretary-General António Guterres at the launch of WMO’s report on the State of the Global Climate 2020 which highlighted accelerating climate change indicators and worsening impacts.