Patagonia in the context of Vaca Muerta

Volcanic ash consists of fragments of rock, mineral crystals, and volcanic glass, produced during volcanic eruptions and measuring less than 2 mm (0.079 inches) in diameter. The term volcanic ash is also often loosely used to refer to all explosive eruption products (correctly referred to as tephra), including particles larger than 2 mm. Volcanic ash is formed during explosive volcanic eruptions when dissolved gases in magma expand and escape violently into the atmosphere. The force of the gases shatters the magma and propels it into the atmosphere where it solidifies into fragments of volcanic rock and glass. Ash is also produced when magma comes into contact with water during phreatomagmatic eruptions, causing the water to explosively flash to steam leading to shattering of magma. Once in the air, ash is transported by wind up to thousands of kilometres away.

Due to its wide dispersal, ash can have a number of impacts on society including: animal and human health problems, disruption to aviation, disruption to critical infrastructure (e.g., electric power supply systems, telecommunications, water and waste-water networks, transportation), primary industries (e.g., agriculture), and damage to buildings and other structures.

A glacier (US: /ˈɡleɪʃər/; UK: /ˈɡlæsiə/ or /ˈɡleɪsiə/) is a persistent body of dense ice, a form of rock, that is constantly moving downhill under its own weight. A glacier forms where the accumulation of snow exceeds its ablation over many years, often centuries. It acquires distinguishing features, such as crevasses and seracs, as it slowly flows and deforms under stresses induced by its weight. As it moves, it abrades rock and debris from its substrate to create landforms such as cirques, moraines, or fjords. Although a glacier may flow into a body of water, it forms only on land and is distinct from the much thinner sea ice and lake ice that form on the surface of bodies of water.

On Earth, 99% of glacial ice is contained within vast ice sheets (also known as "continental glaciers") in the polar regions, but glaciers may be found in mountain ranges on every continent other than the Australian mainland, including Oceania's high-latitude oceanic island countries such as New Zealand. Between latitudes 35°N and 35°S, glaciers occur only in the Himalayas, Andes, and a few high mountains in East Africa, Mexico, New Guinea and on Zard-Kuh in Iran. With more than 7,000 known glaciers, Pakistan has more glacial ice than any other country outside the polar regions. Glaciers cover about 10% of Earth's land surface. Continental glaciers cover nearly 13 million km (5 million sq mi) or about 98% of Antarctica's 13.2 million km (5.1 million sq mi), with an average thickness of ice 2,100 m (7,000 ft). Greenland and Patagonia also have huge expanses of continental glaciers. The volume of glaciers, not including the ice sheets of Antarctica and Greenland, has been estimated at 170,000 km.

A cost-of-living crisis is a socioeconomic situation or period of high inflation where nominal wages have stagnated while there is a sharp increase in the cost of basic goods, such as food, housing, and energy. As a result, living standards are squeezed to the point that people cannot afford the standard of living that they were previously accustomed to. Public health is threatened. The population becomes 'poorer' than it used to be in real terms. This is in contrast to a situation in which wages are rising to meet the rate of inflation and workers' standard of living remains unchanged.

During the 2020s, a cost-of-living crisis impacted many countries around the world amid global inflation. In February 2023, 3 out of 4 consumers globally were worried about the rising cost of everyday expenses. The Big Issue defines a cost of living crisis as "a situation in which the cost of everyday essentials like groceries and bills are rising faster than average household incomes". Change in average real incomes can be measured by real GNI per capita change.

Permafrost (from perma- 'permanent' and frost) is soil or underwater sediment which continuously remains below 0 °C (32 °F) for two years or more; the oldest permafrost has been continuously frozen for around 700,000 years. Whilst the shallowest permafrost has a vertical extent of below a meter (3 ft), the deepest is greater than 1,500 m (4,900 ft). Similarly, the area of individual permafrost zones may be limited to narrow mountain summits or extend across vast Arctic regions. The ground beneath glaciers and ice sheets is not usually defined as permafrost, so on land, permafrost is generally located beneath a so-called active layer of soil which freezes and thaws depending on the season.

Around 15% of the Northern Hemisphere or 11% of the global surface is underlain by permafrost, covering a total area of around 18 million km (6.9 million sq mi). This includes large areas of Alaska, Canada, Greenland, and Siberia. It is also located in high mountain regions, with the Tibetan Plateau being a prominent example. Only a minority of permafrost exists in the Southern Hemisphere, where it is consigned to mountain slopes like in the Andes of Patagonia, the Southern Alps of New Zealand, or the highest mountains of Antarctica.

The Falkland Islands (/ˈfɔː(l)klənd, ˈfɒlk-/; Spanish: Islas Malvinas [ˈislas malˈβinas]), commonly referred to as The Falklands, is an archipelago in the South Atlantic Ocean on the Patagonian Shelf. The principal islands are about 300 mi (500 km) east of South America's southern Patagonian coast and 752 mi (1,210 km) from Cape Dubouzet at the northern tip of the Antarctic Peninsula, at a latitude of about 52°S. The archipelago, with an area of 4,700 sq mi (12,000 km), comprises East Falkland, West Falkland, and 776 smaller islands. As a British Overseas Territory, the Falklands have internal self-governance, while the United Kingdom takes responsibility for their defence and foreign affairs. The capital and largest settlement is Stanley on East Falkland.

The islands are believed to have been uninhabited prior to European discovery in the 17th century. Controversy exists over the Falklands' discovery and subsequent colonisation by Europeans. At various times, the islands have had French, British, Spanish, and Argentine settlements. Britain reasserted its rule in 1833, but Argentina maintains its claim to the islands. In April 1982, Argentine military forces invaded the islands. British administration was restored two months later at the end of the Falklands War. In a 2013 sovereignty referendum, almost all of the votes cast were in favour of remaining a UK overseas territory. The territory's sovereignty status is part of an ongoing dispute between Argentina and the UK.

Post-glacial rebound (also called isostatic rebound or crustal rebound) is the rise of land masses after the removal of the huge weight of ice sheets during the last glacial period, which had caused isostatic depression. Post-glacial rebound and isostatic depression are phases of glacial isostasy (glacial isostatic adjustment, glacioisostasy), the deformation of the Earth's crust in response to changes in ice mass distribution. The direct raising effects of post-glacial rebound are readily apparent in parts of Northern Eurasia, Northern America, Patagonia, and Antarctica. However, through the processes of ocean siphoning and continental levering, the effects of post-glacial rebound on sea level are felt globally far from the locations of current and former ice sheets.

The Mapuche (/məˈpuːtʃi/ mə-POO-chee, Mapuche and Spanish: [maˈputʃe]), also known as Araucanians, are a group of Indigenous inhabitants of south-central Chile and southwestern Argentina, including parts of Patagonia. The collective term refers to a wide-ranging ethnicity composed of various groups who share a common social, religious, and economic structure, as well as a common linguistic heritage as Mapudungun speakers. Their homelands once extended from Choapa Valley to the Chiloé Archipelago and later spread eastward to Puelmapu, a land comprising part of the Argentine pampa and Patagonia. Today the collective group makes up over 80% of the Indigenous peoples in Chile and about 9% of the total Chilean population .The Mapuche are concentrated in the Araucanía region. Many have migrated from rural areas to the cities of Santiago and Buenos Aires for economic opportunities. More than 92% of the Mapuches are from Chile.

The Mapuche traditional economy is based on agriculture; their traditional social organization consists of extended families, under the direction of a lonko or chief. In times of war, the Mapuche would unite in larger groupings and elect a toki (meaning "axe" or "axe-bearer") to lead them. Mapuche material culture is known for its textiles and silverwork.

The Occupation of Araucanía or Pacification of Araucanía (1861–1883) was a series of military campaigns, agreements and penetrations by the Chilean military and settlers into Mapuche territory which led to the incorporation of Araucanía into Chilean national territory. Pacification of Araucanía was the expression used by the Chilean authorities for this process. The conflict was concurrent with Argentine campaigns against the Mapuche (1878–1885) aimed at establishing dominance over Patagonia and Chile's wars with Spain (1865–1866) and with Peru and Bolivia (1879–1883).

The Mapuche people had a history of resistance to Spanish conquest with the area known as Araucanía remaining de facto independent through the colonial era. Following Chile's War of Independence against the Spanish Empire, relations between the nascent republic and the Mapuches of Araucanía remained mostly amicable. However economic and geopolitical reasons together with increasingly negative attitudes towards the Mapuche made Chilean authorities decide to seek an incorporation of Araucanía, by force if necessary. The Mapuche chiefdoms responded in different ways, some aligned with the central government, a substantial number followed the lead of the Arribanos in violently opposing the advance of Chilean settlers and soldiers into the region, while some others opted for neutrality. For the first ten years (1861−1871), the Mapuches were unable to prevent Chile from advancing its positions but at time were able to defeat in detail small detachments while avoiding large battles. Hostilities were minimal in the decade that followed, this period was mostly peaceful but ended when the Mapuches were unable to militarily oppose a large Chilean army that in March 1881 penetrated from the north to Cautín River, putting most of the territory under Chilean rule or at least occupation. In November 1881, the Mapuches made a last-ditch effort to regain control of their territory, launching coordinated strikes against Chilean settlements across the region. With most of these attacks repelled and Mapuche forces defeated within a matter of days, Chile went on to consolidate its conquests in the years that followed.

The Brittonic languages (also Brythonic or British Celtic; Welsh: ieithoedd Brythonaidd/Prydeinig; Cornish: yethow brythonek/predennek; and Breton: yezhoù predenek) form one of the two branches of the Insular Celtic languages; the other is Goidelic. It comprises the extant languages Breton, Cornish, and Welsh. The name Brythonic was derived by Welsh Celticist John Rhys from the Welsh word Brython, denoting a Celtic Briton as distinguished from Anglo-Saxons or Gaels.

The Brittonic languages derive from the Common Brittonic language, spoken throughout Great Britain during the Iron Age and Roman period. In the 5th and 6th centuries emigrating Britons also took Brittonic speech to the continent, most significantly in Brittany and Britonia. During the next few centuries, in much of Britain the language was replaced by Old English and Scottish Gaelic, with the remaining Common Brittonic language splitting into regional dialects, eventually evolving into Welsh, Cornish, Breton, Cumbric, and probably Pictish. Welsh and Breton continue to be spoken as native languages, while a revival in Cornish has led to an increase in speakers of that language. Cumbric and Pictish are extinct, having been replaced by Goidelic and Anglic speech. There is also a community of Brittonic language speakers in Y Wladfa (the Welsh settlement in Patagonia).

The Magellan expedition (10 August or 20 September 1519 – 6 September 1522) was the first voyage around the world in human history. It was a Spanish expedition that sailed from Seville in 1519 under the initial command of Ferdinand Magellan, a Portuguese sailor, and completed in 1522 by Spanish Basque navigator Juan Sebastián Elcano.

The initial goal of the voyage was to secure time to explore the possibility of a southwestern passage around South America to China and the Spice Islands (now part of Indonesia). After crossing the Atlantic, wintering in Patagonia, and suppressing a mutiny, the expedition found and transited the Straits of Magellan in 1520. After crossing the Pacific Ocean to the Philippines, Magellan was killed during a raid on the Mactan chief Lapulapu in 1521. The ship Victoria under Juan Sebastian Elcano—who began the expedition as a boatswain— took command of the expedition and sailed into the open Indian Ocean, avoided landing in South Africa despite the resulting starvation, and bluffed his way into resupply at the Cape Verde Islands before completing the first circumnavigation on 6 September 1522. Of the initial 270 crew members, only 18 sailors completed the entire journey.

The 2012 Aysén protests were a series of protests that occurred in Aysén Region in central Chilean Patagonia in February 2012.

The Patagonian Desert, also known as the Patagonian Steppe, is the largest desert in Argentina and is the eighth-largest desert in the world by area, occupying approx. 673,000 square kilometres (260,000 mi). It is located primarily in Argentina and is bounded by the Andes, to its west, and the Atlantic Ocean to its east, in the region of Patagonia, southern Argentina and areas of Chile. To the north the desert grades into the Cuyo Region and the Monte. The central parts of the steppe are dominated by shrubby and herbaceous plant species albeit to the west, where precipitation is higher, bushes are replaced by grasses. Topographically the deserts consist of alternating tablelands and massifs dissected by river valleys and canyons. The more western parts of the steppe host lakes of glacial origin and grades into barren mountains or cold temperate forests along valleys.

Inhabited by hunter-gatherers since Pre-Hispanic times, the desert faced migration in the 19th century of Argentines, Welsh, and other European peoples, transforming it from a conflictive borderland zone to an integral part of Argentina, with cattle, sheep and horse husbandry being the primary land uses.

Neuquén (Spanish pronunciation: [newˈken]) is a province of Argentina, located in the west of the country, at the northern end of Patagonia. It borders Mendoza Province to the north, Rio Negro Province to the southeast, and Chile to the west. It also meets La Pampa Province at its northeast corner.

Río Negro (Spanish pronunciation: [ˈri.o ˈneɣɾo], Black River) is a province of Argentina, located in northern Patagonia. Neighboring provinces are from the south clockwise Chubut, Neuquén, Mendoza, La Pampa and Buenos Aires. To the east lies the Atlantic Ocean.

Its capital is Viedma near the Atlantic outlet of the province's namesake river in the eastern extreme. The largest city is Bariloche in the far west in the Andean foothills. Other important cities include General Roca and Cipolletti.

Santa Cruz Province (Spanish: Provincia de Santa Cruz, Spanish pronunciation: [ˈsanta ˈkɾus], "Holy Cross") is a province of Argentina, located in the southern part of the country, in Patagonia. It borders Chubut Province to the north, and Chile to the west and south, with the Atlantic coast to the east. Santa Cruz is the second-largest province of the country (after Buenos Aires Province), and the least densely populated in mainland Argentina. It covers a land area of 243,943 km and had a population of 337,226 at the 2022 Census.

The indigenous people of the province are the Tehuelches, who despite European exploration from the 16th century onwards, retained independence until the late 19th century. Soon after the Conquest of the Desert in the 1870s, the area was organised as the Territory of Santa Cruz, named after its original capital in Puerto Santa Cruz. The capital moved to Rio Gallegos in 1888 and has remained there ever since. Immigrants from various European countries came to the territory in the late 19th and early 20th century during a gold rush. Santa Cruz became a province of Argentina in 1957.