When returning from Ruxcon I took a Virgin Blue flight.
The Virgin web site has a FAQ with the following advice regarding DVT:
Drink plenty of water and other fluids during and after the flight, limiting alcohol, tea and coffee.
However Virgin provide no free water on the flight and charge $2 for 350ml of water! This is a strong incentive to buy caffeinated drinks and/or alcohol, after all if you are going to pay then you want something better than water!
They should provide free tap water as a basic health measure.
On the positive side there was an interesting article in the Virgin Blue magazine about alternative sources of fuel. It covered bio-Diesel (renewable and produces less toxic smoke), and producing Diesel from waste plastic (saves space in land-fill as well as providing fuel). It wasn’t as technically detailled as I would like and it didn’t mention some of the methods being developed for producing Diesel fuel from algae or the work on using bio-fuel for jet aircraft (which would be appropriate for an airline magazine).
But it’s a good start, hopefully some travellers will learn that there are environmental problems and ways that we can fix them.