@DaearGO - Uned 3 : Systemau Byd-eang a Llywodraethiant Byd-eang

Uned 3 : Systemau Byd-eang a Llywodraethiant Byd-eang

Systemau Byd-eang

Llywodraethiant Byd-eang

What is the carbon cycle?The carbon cycle describes the process in which carbon atoms continually travel from the atmosphere to the Earth and then back into the atmosphere. Since our planet and its atmosphere form a closed environment, the amount of carbon in this system does not change. Where the carbon is located — in the atmosphere or on Earth — is constantly in flux.

The Carbon CycleThe carbon cycle describes how carbon transfers between different reservoirs located on Earth. This cycle is important for maintaining a stable climate and carbon balance on Earth.

earthobservatory.nasa.gov/features/CarbonCycle

www.noaa.gov/education/resource-collections/freshwater/water-cycle

Why is the South China Sea contentious?Overlapping claims in the South China Sea threaten to turn the region into a flashpoint of global concern.

How foreign workers contribute to the NHSOne in seven NHS workers in England are foreign nationals. That’s according to figures from the health service, which found last September that around 170,000 of the NHS’s 1.3 million staff members reported a non-British nationality – around 13.9 per cent of staff. var pymParent = new pym.Parent("staff", "https://nsmg-projects-public.s3.eu-west-2.amazonaws.com/live/2021-06/nhs_eu_nationals/staff.html", {}); #staff iframe { width: 100%} The figures show that Indians make up the largest number of foreign staff members, at 27,620 workers, followed by Filipino (23,035), Irish (13,975) and Polish (10,225) staff. EU and EEA nationals account for 5.5 per cent of workers overall, while those from the rest of the world represent 8.5 per cent. The figures highlight the contribution workers from overseas make to England’s health service. The Conservative peer and former Test and Trace head Dido Harding, who has applied to be the next head of NHS England, has vowed to end the service’s reliance on foreign doctors and nurses. At present, 29 per cent of all hospital doctors are non-British nationals, as are 18 per cent of nurses and health visitors.

Water CycleThe water cycle is the endless process that connects all of the water on Earth.

www2.le.ac.uk/departments/geography/research/projects/tropical-peatland/peatland-carbon-cycling#:~:text=Peat%20bogs%20are%20significant%20contributors,organic%20carbon%20in%20global%20soils.

The global internet is powered by vast undersea cables. But they're vulnerable.On July 29, 1858, two steam-powered battleships met in the middle of the Atlantic Ocean. There, they connected two ends of a 4,000 kilometer (2,500 mile) long, 1.5 centimeter (0.6 inch) wide cable, linking for the first time the European and North American continents by telegraph.

Peatlands carbon cycle | GRID-ArendalPeat is formed when organic matter accumulates faster than it decomposes due to the lack of oxygen in waterlogged conditions. Peatlands are the most carbon dense of any terrestrial ecosystem in the world (Joosten & Couwenberg, 2008; Urák et al., 2017). Ecosystems sequester and store carbon in different ways, such as in living biomass, litter or humus in upper layers of mineral soils. Most of these carbon pools are not permanent and carbon will be released back to atmosphere over relatively short cycles. Beside these pools, however, the peat layer of peatlands provides – if not disturbed – a unique, permanent store for carbon. Keeping this carbon in the ground is crucial if the world i...

International relations of the Great Powers (1814–1919) - Wikipedia

Plastic Oceans UK - Stopping plastic reaching the ocean.

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