Type of news:
13 contents match your search.
Publish Date: 1 May 2020
Depletion of the ozone layer, the shield that protects life on Earth from harmful levels of ultraviolet radiation, reached an unprecedented level over large parts of the Arctic this spring. This phenomenon was caused by the continuing presence of ozone-depleting substances in the atmosphere and a very cold winter in the stratosphere (the layer of the atmosphere between around 10 km and round 50 km altitude).
Publish Date: 16 September 2019
On this year’s International Day for the Preservation of the Ozone Layer, WMO highlights the coordinated efforts to measure and analyze ozone layer through its Global Atmosphere Watch network in support of environmental policy.
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: 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: 5 November 2018
The latest Scientific Assessment of Ozone Depletion reveals a healing ozone layer, global warming reduction potential, and options for more ambitious climate action.
Publish Date: 30 October 2018
The World Meteorological Organization has joined the global commitment to reduce deaths due to air pollution by two thirds by 2030. At the World Health Organization’s first ever Global Conference on Air Pollution and Health , WMO pledged to strengthen the quality and availability of pollution observations, enable provision of air quality forecast and advisory services and incorporate health impacts in key scientific assessments on climate and climate change.
Publish Date: 3 April 2017
Top ozone experts from around the world highlighted the need for increased research and observations to inform policy on ozone and climate at a meeting sponsored by UN Environment and the World Meteorological Organization in Geneva, 28 – 30 March. The 10 th Ozone Research Managers (ORM) meeting concluded that integrated earth science observation systems are essential to ensure that action to protect the ozone layer also benefits the climate, given the complex and evolving interaction between the ozone layer and the climate system.
Publish Date: 26 October 2018
Air quality regulations and anti-pollution measures in Europe and North America have had very positive impacts on air quality. Since the year 2000, both average and peak surface ozone concentrations have levelled off and even started to fall at some locations after increasing throughout the twentieth century, according to a new report from the World Meteorological Organization.