Did you ever think that there were this many airplanes in the sky at one time?
This video shows a 24 hour period.
Globally the worlds 16,000 commercial jet aircraft generate more than 600 million tonnes of carbon dioxide (CO2), the worlds major greenhouse gas, per year. Indeed aviation generates nearly as
much CO2 annually as that from all human activities in Africa.
Offset your flights now at http://www.carbontradexchange.co.uk
Courtesy: Zurich School of Applied Sciences http://radar.zhaw.ch/
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