For the capture of 1 tonne of CO2 emissions ~50 trees must grow for one year [[1]]
*using 0.905 kg of CO2 per kilowatt hour [[Australian Government - Department of the Environment and Energy](http://www.environment.gov.au/climate-change/climate-science-data/greenhouse-gas-measurement/publications/national-greenhouse-accounts-factors-july-2018)]
^using 0.905 kg of CO2 per kilowatt hour [[2]], and 0.3kWh/hr per CPU.