I am embarrassed to say we took 2 round trip short haul flights in May alone. One to the Outer Hebrides for a Scottish isles wedding and one to Berlin to see the sights. We did try to take trains to both destinations but the costs and travel time were not possible. That said, the flights were still quite costly (though 1/2 as much as trains) and as I say every time I'm stuck in an airport, flying always takes way longer than people perceive. By the time you get to the airport, go through security, wait for boarding, lay-overs, delays, wait for luggage at other end... The 630 miles door to door to the Hebrides was 9 hours from London via Glasgow and Berlin (about 650 miles) was 6 hours each way including delays. If we had used the trains and ferries we would have only traveled a few more hours each way. To offset these travels, plus our household emissions, I did some carbon neutralization research and shopping today. Everyone talks about carbon offsetting but I don't know ...