Berlin Blockade continent for weeks. All too often, aircraft would make the entire flight and then be unable to land in Berlin. On 20 November 1948, 42 aircraft departed for Berlin, but only one landed there. At one point, the city had only a week's supply of coal left. However, the weather eventually improved, and more than 171,000 tons were delivered in January 1949, 152,000 tons in February, and 196,223 tons in March. By April 1949, airlift operations were running smoothly and Tunner wanted to shake up his command to discourage complacency. He believed in the spirit of competition between units and,
The Coal Question this rate until about 1970. According to Jevons, UK coal production in 1865 was estimated as being equal to production in the rest of the world, giving a rough world estimate of 200 million tons. According to the US Department of Energy, global fossil fuel consumption in 1970 was 200 Quad BTU, or 7.2 billion tons coal equivalent. Thus, consumption grew by a factor of 36, representing average annual exponential growth over 105 years of about 3.4%. In the 34 subsequent years, to 2004, consumption grew by a factor of 2.1, or 2.2% per year, an indication, according to organizations