Question: How much of the glaciation disappeared in the country where the body that intervened with mediation for governments was located?

full_context: Document 1: League of Nations: Following a long record of instigating localised conflicts throughout the 1930s, Japan began a full-scale invasion of China on 7 July 1937. On 12 September, the Chinese representative, Wellington Koo, appealed to the League for international intervention. Western countries were sympathetic to the Chinese in their struggle, particularly in their stubborn defence of Shanghai, a city with a substantial number of foreigners. The League was unable to provide any practical measures; on 4 October, it turned the case over to the Nine Power Treaty Conference.
Document 2: Alps: High levels of precipitation cause the glaciers to descend to permafrost levels in some areas whereas in other, more arid regions, glaciers remain above about the 3,500 m (11,483 ft) level. The 1,817 square kilometres (702 sq mi) of the Alps covered by glaciers in 1876 had shrunk to 1,342 km2 (518 sq mi) by 1973, resulting in decreased river run-off levels. Forty percent of the glaciation in Austria has disappeared since 1850, and 30% of that in Switzerland.
Document 3: Panama Canal Zone: The Spanish -- American War of 1898 added new life to the canal debate. During the war, American warships in the Atlantic seeking to reach battle zones in the Pacific had been forced to round Cape Horn. Influential naval pundits, such as Captain Alfred Thayer Mahan, urged the construction of a Central American canal. In 1902, with the French efforts moribund, US President Theodore Roosevelt backed the Panama route, and Congress passed legislation authorizing him to purchase the French assets on the condition that an agreement was reached with Colombia. In March 1902, Colombia set its terms for such a treaty: Colombia was to be sovereign over the canal, which would be policed by Colombians paid for by the United States. The host nation would receive a larger percentage of the tolls than provided for in earlier draft treaties. The draft terms were quickly rejected by American officials. Roosevelt was in a hurry to secure the treaty; the Colombians, to whom the French property would revert in 1904, were not. Negotiations dragged on into 1903, during which time there was unrest in Panama City and Colón; the United States sent in Marines to guard the trains. Nevertheless, in early 1903, the United States and Colombia signed a treaty which, despite Colombia's previous objections, gave the United States a 6 miles (9.7 km) wide zone in which it could deploy troops with Colombian consent. On August 12, 1903, the Colombian Senate voted down the treaty 24 -- 0.
Document 4: Switzerland: Switzerland lies between latitudes 45° and 48° N, and longitudes 5° and 11° E. It contains three basic topographical areas: the Swiss Alps to the south, the Swiss Plateau or Central Plateau, and the Jura mountains on the west. The Alps are a high mountain range running across the central-south of the country, comprising about 60% of the country's total area. The majority of the Swiss population live in the Swiss Plateau. Among the high valleys of the Swiss Alps many glaciers are found, totalling an area of 1,063 square kilometres (410 sq mi). From these originate the headwaters of several major rivers, such as the Rhine, Inn, Ticino and Rhône, which flow in the four cardinal directions into the whole of Europe. The hydrographic network includes several of the largest bodies of freshwater in Central and Western Europe, among which are included Lake Geneva (also called le Lac Léman in French), Lake Constance (known as Bodensee in German) and Lake Maggiore. Switzerland has more than 1500 lakes, and contains 6% of Europe's stock of fresh water. Lakes and glaciers cover about 6% of the national territory. The largest lake is Lake Geneva, in western Switzerland shared with France. The Rhône is both the main source and outflow of Lake Geneva. Lake Constance is the second largest Swiss lake and, like the Lake Geneva, an intermediate step by the Rhine at the border to Austria and Germany. While the Rhône flows into the Mediterranean Sea at the French Camarque region and the Rhine flows into the North Sea at Rotterdam in the Netherlands, about 1000 km apart, both springs are only about 22 km apart from each other in the Swiss Alps.
Document 5: League of Nations: There were several border conflicts between Colombia and Peru in the early part of the 20th century, and in 1922, their governments signed the Salomón-Lozano Treaty in an attempt to resolve them. As part of this treaty, the border town of Leticia and its surrounding area was ceded from Peru to Colombia, giving Colombia access to the Amazon River. On 1 September 1932, business leaders from Peruvian rubber and sugar industries who had lost land, as a result, organised an armed takeover of Leticia. At first, the Peruvian government did not recognise the military takeover, but President of Peru Luis Sánchez Cerro decided to resist a Colombian re-occupation. The Peruvian Army occupied Leticia, leading to an armed conflict between the two nations. After months of diplomatic negotiations, the governments accepted mediation by the League of Nations, and their representatives presented their cases before the Council. A provisional peace agreement, signed by both parties in May 1933, provided for the League to assume control of the disputed territory while bilateral negotiations proceeded. In May 1934, a final peace agreement was signed, resulting in the return of Leticia to Colombia, a formal apology from Peru for the 1932 invasion, demilitarisation of the area around Leticia, free navigation on the Amazon and Putumayo Rivers, and a pledge of non-aggression.
Document 6: Palace of Nations: The Palace of Nations (, ) is the home of the United Nations Office at Geneva, located in Geneva, Switzerland. It was built between 1929 and 1938 to serve as the headquarters of the League of Nations. It has served as the home of the United Nations Office at Geneva since 1946 when the Secretary-General of the United Nations signed a Headquarters Agreement with the Swiss authorities, although Switzerland did not become a member of the United Nations until 2002.
Document 7: Alps: Glaciers end in ice caves (the Rhone Glacier), by trailing into a lake or river, or by shedding snowmelt on a meadow. Sometimes a piece of glacier will detach or break resulting in flooding, property damage and loss of life. In the 17th century about 2500 people were killed by an avalanche in a village on the French-Italian border; in the 19th century 120 homes in a village near Zermatt were destroyed by an avalanche.
Document 8: Colombian conflict: The Colombian conflict began in the mid-1960s and is a low - intensity asymmetric war between Colombian governments, paramilitary groups, crime syndicates, and far - left guerrillas such as the Revolutionary Armed Forces of Colombia (FARC), and the National Liberation Army (ELN), fighting each other to increase their influence in Colombian territory. Two of the most important international actors that have contributed to the Colombian conflict are multinational companies and the United States.
Document 9: Alps: The Alps provide lowland Europe with drinking water, irrigation, and hydroelectric power. Although the area is only about 11 percent of the surface area of Europe, the Alps provide up to 90 percent of water to lowland Europe, particularly to arid areas and during the summer months. Cities such as Milan depend on 80 percent of water from Alpine runoff. Water from the rivers is used in over 500 hydroelectricity power plants, generating as much as 2900 kilowatts of electricity.
Document 10: Switzerland: Apart from the United Nations headquarters, the Swiss Confederation is host to many UN agencies, like the World Health Organization (WHO), the International Labour Organization (ILO), the International Telecommunication Union (ITU), the United Nations High Commissioner for Refugees (UNHCR) and about 200 other international organisations, including the World Trade Organization and the World Intellectual Property Organization. The annual meetings of the World Economic Forum in Davos bring together top international business and political leaders from Switzerland and foreign countries to discuss important issues facing the world, including health and the environment. Additionally the headquarters of the Bank for International Settlements (BIS) are located in Basel since 1930.
Document 11: Switzerland: The establishment of the Swiss Confederation is traditionally dated to 1 August 1291, which is celebrated annually as the Swiss National Day. The country has a long history of armed neutrality—it has not been in a state of war internationally since 1815—and did not join the United Nations until 2002. Nevertheless, it pursues an active foreign policy and is frequently involved in peace-building processes around the world. In addition to being the birthplace of the Red Cross, Switzerland is home to numerous international organizations, including the second largest UN office. On the European level, it is a founding member of the European Free Trade Association, but notably it is not part of the European Union, nor the European Economic Area. However the country does participate in the Schengen Area and the EU's single market through a number of bilateral treaties.
Document 12: Switzerland: A large number of international institutions have their seats in Switzerland, in part because of its policy of neutrality. Geneva is the birthplace of the Red Cross and Red Crescent Movement and the Geneva Conventions and, since 2006, hosts the United Nations Human Rights Council. Even though Switzerland is one of the most recent countries to have joined the United Nations, the Palace of Nations in Geneva is the second biggest centre for the United Nations after New York, and Switzerland was a founding member and home to the League of Nations.
Document 13: Alps: The Alps are a classic example of what happens when a temperate area at lower altitude gives way to higher-elevation terrain. Elevations around the world that have cold climates similar to those of the polar regions have been called Alpine. A rise from sea level into the upper regions of the atmosphere causes the temperature to decrease (see adiabatic lapse rate). The effect of mountain chains on prevailing winds is to carry warm air belonging to the lower region into an upper zone, where it expands in volume at the cost of a proportionate loss of temperature, often accompanied by precipitation in the form of snow or rain. The height of the Alps is sufficient to divide the weather patterns in Europe into a wet north and a dry south because moisture is sucked from the air as it flows over the high peaks.
Document 14: Switzerland: Traditionally, Switzerland avoids alliances that might entail military, political, or direct economic action and has been neutral since the end of its expansion in 1515. Its policy of neutrality was internationally recognised at the Congress of Vienna in 1815. Only in 2002 did Switzerland become a full member of the United Nations and it was the first state to join it by referendum. Switzerland maintains diplomatic relations with almost all countries and historically has served as an intermediary between other states. Switzerland is not a member of the European Union; the Swiss people have consistently rejected membership since the early 1990s. However, Switzerland does participate in the Schengen Area.
Document 15: League of Nations: The World Disarmament Conference was convened by the League of Nations in Geneva in 1932, with representatives from 60 states. A one - year moratorium on the expansion of armaments, later extended by a few months, was proposed at the start of the conference. The Disarmament Commission obtained initial agreement from France, Italy, Spain, Japan, and Britain to limit the size of their navies. The Kellogg -- Briand Pact, facilitated by the commission in 1928, failed in its objective of outlawing war. Ultimately, the Commission failed to halt the military build - up by Germany, Italy, Spain and Japan during the 1930s. The League was mostly silent in the face of major events leading to the Second World War, such as Hitler's remilitarisation of the Rhineland, occupation of the Sudetenland and Anschluss of Austria, which had been forbidden by the Treaty of Versailles. In fact, League members themselves re-armed. In 1933, Japan simply withdrew from the League rather than submit to its judgement, as did Germany the same year (using the failure of the World Disarmament Conference to agree to arms parity between France and Germany as a pretext), Italy and Spain in 1937. The final significant act of the League was to expel the Soviet Union in December 1939 after it invaded Finland.
ground_truth: 30%
sub_queries: Who intervened with mediation for the governments? Answer: the League of Nations
Where is the League of Nations located? Answer: Switzerland
How much of the glaciation disappeared in Switzerland ? Answer: 30%