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 coal production did in fact peak in 1913, but at 292 million tons, about half the amount Jevons' extrapolation suggested. Just under a third of this was exported. Since then, production has dropped to less than 20 million tons. Current UK resources are estimated at about 400 million tons. According to Jevons, coal depletion had serious ramifications for population growth. The population of the UK had increased by more than 10% each decade for the prior 70 years, not surprising given that coal production was growing at 40% per decade, meaning that the "per capita" wealth was growing. "For the