SENCO Sustainable Environment Consultants




Aircraft emit carbon dioxide and cause the formation of other pollutants such as water and nitrogen oxides that lead to further warming through cloud and tropospheric ozone formation. The prospects are for continued high growth of emissions from aviation, a growth without imminent physical or economic limits that will lead aviation to becoming one of the largest sources of global warming . An added problem is that international aviation is not generally subject to national controls. These features differentiate it from land based sectors.

SENCO has worked on the modelling of emissions from aviation, strategies for controlling emissions, the effects of charges to control emissions, and the possible effects of deregulation on aviation's environmental impacts. These studies show that technology improvements and fuel taxes are effective, but insufficient to control emissions; and that demand management is an essential component of emission control.

SENCO 's  model of aviation is called AviAn. It simulates aviation demand and supply over a number of scenario years. AviAn  can be used to look at scenarios of aviation development with different policy options such as demand management, and technical and operational improvements. It also may be used to study the effects of environmental charges or taxes on aviation inputs, such as fuel, or outputs such as global warming effects.


Assessment of Heathrow Terminal 5 Development  Putney Association Assessment of the environmental impacts of the proposed Terminal 5 development at Heathrow airport.

 (, Word, 0.1 Mb)

1998 Mark Barrett
Effect of aviation charges WorldWide Fund for Nature International Study analysing the possible effects of aviation charges on global atmospheric emissions from aircraft.

(, Word, 0.2Mb)

1996 Mark Barrett
Training British Airways Training seminars on environment and aviation.

(, Powerpoint, 0.3Mb)

1994 - 1995 Mark Barrett
Effect of regulatory framework on environmental impact of aviation in Europe WorldWide Fund for Nature International An analysis of the possible effects of the liberalisation of the aviation market on atmospheric emissions by aircraft.

(, Word, 0.1Mb)

1994 Mark Barrett
Pollution control strategies for aircraft. WorldWide Fund for Nature International A comprehensive study of pollution from aircraft and strategies for controlling pollution.(, Word, 0.4Mb) 1994 Mark Barrett
Aircraft pollution WorldWide Fund for Nature International Estimate of emissions from aircraft at the global scale. 1991 Mark Barrett


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