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The aircraft industry is expecting a seven-fold increase in air traffic by 2050, and a four-fold increase in greenhouse gas emissions unless fundamental changes are made. But just how “fundamental” will those changes need to be

South Africa’s digital terrestrial television migration project is in a dire state and if the country fails to switch off its analogue signals after the mid-June 2015 cut-off date, it may be obliged to do so if analogue signals interfere with