World Wildlife Fund: Due to technological improvements, an increasing number of business trips can now be substituted by ‘virtual meetings’ and therefore help to minimize aviation-related carbon dioxide (CO2) emissions. For example, an Australian study has estimated that video-conferencing could avoid 2.4 million tonnes of national CO2 emissions, equivalent to 0.43 percent of the country’s total. However, despite improved quality and reliability, and the qualitative change arising from new high definition …