Air cargo the area surrounding the city and thus land access. As this access was closed, in the so-called Berlin blockade, an airlift remained the only option to get increasingly urgent deliveries of food, coal, and other supplies to West Berlin. Over 330 days to 12 May 1949 a total of 2.26 million tons of cargo were airlifted to Berlin, an average of 6,800 tons a day, 80% by the US and 20% by the UK. Although freight traffic developed modestly, reaching only 800,000 tonnes worldwide by the mid-1950s, the world economy was hitting its post-war stride. Germany and Japan were emerging
Coal mining in the United States Basin in northern Wyoming and Southern Montana for export to Asia increased. In 2014, 3.0 percent of the coal shipments from Montana and Wyoming were exported. The 2014 coal exports from the two states of 13 .4 million short tons represented an increase of 1.2 million tons over 2012 export levels, which is 0.3 percent of the states’ 2014 total coal shipments of 439.8 million tons. As of 2013, 41 percent of US coal production was mined from federal land, almost all of it in the western US, where federal coal makes up about 80 percent of mined production. The