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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.
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.
Publish Date: 11 March 2021
The tenth anniversary of the earthquake, Tsunami and nuclear accident in Japan is being marked by ceremonies to mourn the victims and reflection on lessons learned, including stronger multi-hazard early warning systems and environmental emergency response coordination, to prevent a future tragedy.
Publish Date: 11 January 2021
WMO is hosting a webinar as part of a technical review process of the draft statement on meteorological and air quality factors affecting the COVID-19 pandemic. The webinar takes place on 12 January and the statement is open to scientific review until January 22 nd .
Publish Date: 11 December 2020
The World Meteorological Organization is supporting the First World Virtual High Mountain Summit, which is spearheaded by Colombia. It brings together more than 50 participants from four continents from the public and private sectors, academia, and civil society, to discuss biodiversity and ecosystem services as well as climate variability and change.
Publish Date: 9 December 2020
A green pandemic recovery could cut up to 25 per cent off predicted 2030 greenhouse gas emissions and bring the world closer to meeting the 2°C goal of the Paris Agreement on Climate Change, a new UN Environment Programme (UNEP) report finds.
Publish Date: 3 December 2020
UN Secretary-General António Guterres delivered a landmark speech on the state of the plane t at Columbia University in New York on 2 December, setting the stage for dramatically scaled-up ambition on climate change over the coming year. He drew heavily from WMO’s provisional report on the State of the Global Climate
Publish Date: 13 November 2020
A framework for research linking weather, climate and COVID-19 has been published in Nature Communication. The paper follows the WMO co-sponsored Virtual Symposium on Climatological, Meteorological and Environmental Factors in the COVID-19 Pandemic held in early August.
Bulletin nº Vol 63 (2) - 2014
Publish Date: 3 November 2014
Cities – particularly megacities – are becoming focal points for climate change impacts. Rapid urbanization, accelerating demand for housing, resource supplies and social and health services, place pressure on already stretched physical, social and regulatory infrastructure, heightening risks and vulnerability. In South America, internal migration flows – as well as immigration – are mostly to cities.