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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: 6 February 2019
In a clear sign of continuing long-term climate change associated with record atmospheric concentrations of greenhouse gases, 2015, 2016, 2017 and 2018 have been confirmed as the four warmest years on record.
Bulletin nº Vol 64 (1) - 2015
Theme: Environmental challenges
Publish Date: 2 March 2015
As atmospheric CO 2 continues to increase, more and more CO 2 enters the ocean, which reduces pH (pH is a measure of acidity, the lower the pH, the more acidic the liquid) in a process referred to as ocean acidification. Declines in surface ocean pH due to ocean acidification are already detectable and accelerating.
Publish Date: 10 December 2018
The World Meteorological Organization (WMO) and the Green Climate Fund (GCF) have signed a formal agreement to work together to leverage WMO expertise on weather, climate and water to increase effectiveness of GCF funded activities and support low carbon and climate resilient development.
Publish Date: 7 December 2018
Global CO2 emissions are expected to rise by more than 2% in 2018 because of renewed growth in coal use, and continued growth in oil and gas use, according to the latest data from the Global Carbon Budget. Emissions rose 1.6% in 2017 after a temporary slowdown from 2014 to 2016, according to the Global Carbon Project. This year’s publication included contributions from 76 scientists from 53 research institutions, including from the World Climate Research Programme community.
Publish Date: 3 December 2018
The annual United Nations climate change conference has opened with calls for urgent action to prevent runaway climate change and devastating impacts for the planet.
Publish Date: 20 November 2018
Levels of heat-trapping greenhouse gases in the atmosphere have reached another new record high, according to the World Meteorological Organization (WMO). There is no sign of a reversal in this trend, which is driving long-term climate change, sea level rise, ocean acidification and more extreme weather.
Publish Date: 19 November 2018
WMO has hosted the first symposium and user summit of the Integrated Global Greenhouse Gas Information System (IG3IS), which aims to help inform and guide reductions in emissions of carbon dioxide and other heat trapping gases which are driving climate change.
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.