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Role of Amazon as carbon sink declines: Nature study

20. julij 2021, WMO, Novice, Voda

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. The study was led by Lucia Gatti, Group Leader, Brazil?s National Institute of Space Research /Center of Earth System Science and a member of the steering committee for the Integrated Global Greenhouse Gas Information System spearheaded by WMO. The authors investigated Amazonia?s carbon budget and the main drivers responsible...


Objavljeno 20.7.2021 v/na WMO
https://public.wmo.int/en/media/news/role-of-amazon-carbon-sink-declines-nature-study




Water-related hazards dominate disasters in the past 50 years

23.7.2021, WMO

Geneva, 23 July 2021 (WMO) - Water-related hazards dominate the list of disasters in terms of both the human and economic toll over the past 50 years, according to a comprehensive analysis by the World Meteorological Organization (WMO).
Of the top 10 disasters, the hazards that led to the largest human losses during the period have been droughts (650 000 deaths), storms (577 232 deaths), floods (58 700 deaths) and extreme temperature (55 736 deaths), according to the forthcoming WMO Atlas of Mortality and Economic Losses from Weather, Climate and Water Extremes (1970-2019).
With regard...

Flash flood guidance system includes snow hydrology

14.7.2021, WMO

Climate change has accentuated natural hazards, including flash floods caused by melting of snow and ice in many regions of the world.
The Himalayas, which are the third largest deposit of ice and snow in the world after Antarctica and the Arctic, are heavily impacted. ?This was highlighted by a disaster in February in Uttarakhand in the Indian Himalayas, after a part of the Nanda Devi glacier broke off and collapsed causing a massive flood in the Rishi Ganga /Dhauliganga river. This destroyed two hydropower plants, burst open dams, and led to a large number of casualties and...

WMO issues Airborne Dust Bulletin

7.7.2021, WMO

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.
Every year, around 2,000 million tons of dust enters the atmosphere. Much of this is a natural process, but a large part of it is the result of poor water and land management.
Forecasts have improved greatly...

WMO Executive Council endorses unified data policy

25.6.2021, WMO

Free exchange of Earth system data vital to strengthen observing system and meet increased demand for services in era of climate change
GENEVA, 24 June 2021 - In a milestone decision, the World Meteorological Organization?s Executive Council has endorsed a unified policy on the international exchange of?Earth system data to help its Members meet the explosive growth in demand for weather, climate and water services as the world grapples with the dual challenges of climate change and the increasing frequency of extreme weather events.
The draft data policy resolution, which must be...

International Hydrographic Bureau turns 100

22.6.2021, WMO

The International Hydrographic Bureau has marked its 100th anniversary, with speeches and activities celebrating a century of global collaboration.
Hydrography?is the branch of applied sciences which deals with the measurement and description of the physical features of oceans, seas, coastal areas, lakes and rivers, as well as with the prediction of their change over time. This supports safety of navigation and all other marine activities, including economic development, scientific research, and environmental protection.
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