Telegraph: The University of East Anglia paper said that the decision not to take a flight will have no "net effect' on the amount of greenhouse gases produced globally - and taking a diesel train or petrol bus instead could even make your carbon footprint larger.
Installing energy efficient lightbulbs is also "carbon neutral".
In contrast insulating your home, driving less and eating less meat will all reduce the amount of global greenhouse gas emissions blamed for global warming.
Dr Grischa Perino,...