I wonder where BA chief executive Willy Walsh has been these last months: his belief that the aviation sector can continue its untrammelled growth in the face of climate change flies in the face of both long-awaited political consensus and economic good sense (Green policies will hurt economy, says BA, November 14). As you acknowledge, aviation is the fast-growing contributor to the greenhouse gas emissions which are fuelling climate change - yet the sector remains outside the scope of the Kyoto protocol, the only international treaty on cutting them, and it receives massive subsidies in the form of tax-exempt fuel, thanks to a network of international treaties.
The European parliament has overwhelmingly adopted proposals I drafted to impose a package of measures on airlines operating out of EU airports, including the early establishment of an aviation-only emissions trading scheme (to prevent them using their deep pockets to buy up the emissions rights of other industries), and the European commission is to publish legislative proposals to reduce flying's impact on climate change imminently.
Dr Caroline Lucas
Green, South-East England
While I support the use of trains and boats over plane travel (Letters, November 11), I would love to know how to get to Paris from Aberdeen, here in the real north, in a single night without flying. Of course, if we had the TGV like the French ... but since it seems unlikely anything that sensible will ever happen in the UK, I'll put up with the misery of the airport departure lounge and get to Paris in half a day.
MEP Dr Paul Fowler