"The trouble is that we take 1p off fuel one day and the next day the oil companies add it to the price, we need to come up with a new way of pricing fuel, " one MP later told me.
"To boost our flatlining economy Labour has already called for a temporary VAT cut which would take 3p off a litre of fuel, " shadow chief secretary to the Treasury Rachel Reeves said.
Now, if the industry could only figure out the touchy issue of cost and the still touchier issue of stack replacement (and several signs suggest that moment may arrive sooner rather than later), fuel cells could take off in mainstream markets.
"If you turn the experiment around and put the hydrogen and oxygen in and take the electricity off, you have a fuel cell, " Roan said.
Part of the reservations system calculates the weight of the airplane based off passenger, fuel and luggage data, which is necessary for the airplane to safely take off.
What would happen if policymakers decide to take some of the heat off the industry when it comes to fuel economy?
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There is simply nothing close to the energy content of gasoline or diesel fuel that allows you to fill up and take off and barely even have to think of any limit to your driving for the rest of the day even on a road trip.
XCOR's Lynx, roughly the size of a small airplane, will take off and land on a runway and propel itself with liquid-fuel engines.
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In particular aviation planners are focusing on ways of cutting the amount of time planes spend queuing to take off and land, in the process burning large and unnecessary amounts of fuel (IATA estimates that airlines could cut their annual CO2 emissions by 12 percent if air-traffic control operations were more efficient).
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"The whole point is to take a gas guzzler off the road and replace it with a newer, more fuel efficient model, " Wood said.
They allow their ships to pass in their water, provide them with fuel, food, and supplies and allow their planes to cross their airspace and to even take off from their airports.
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