What a boring bunch of carbonite killjoys have crawled out the woodwork on this thread - do they really have such a dull life that they will begrudge others who have the balls to go out and do something actually pretty exciting.
Well, my hat is off to these two birders, hope they have a right good time, a fantastic thing to do.
This is simply not true - there are vast portions of the globe now surviving only due to their value in bringing in the tourist dollar, pound and euro. Across Africa and elsewhere, conservation is not a luxury most nations can afford as a simple duty, it survives as a source of income. Many African countries have significant portions of their land protected in reserves, the reserves only safe as they generate such significant revenues from tourists fying in. Not only state national parks, but the multitude of private reserves being created - being created, not merely protected. Go to southern Africa and see how many former ranchlands have been converted into gameparks, restocked and protected at immence cost - this would not happen without tourism. There are entire species whose very existance is tied to reserve.
PS. So far this year I have already flown many thousands of kilometres, should I feel guilty, well if I listened to the rants of the carbonies, maybe. But if the world actually listened to them in their entirety, we would not only be bored out of our brains, but the world would be a far worse place, biodiversity lost and habitats destroyed. On my latest trip of sin, I visited Uganda - I think 16 % of its land is in reserve and more under community schemes to promote ecotourism. Bwindi, home to 350 of the world's Highland Gorillas owes its future security to tourism ...that's more than 35% of the world population and all of the others are also in areas protected and supported by tourism, the only ones seriously thought to be at risk are in the national parks in Congo where conflict is limiting tourism. Even outside reserves and beyond community schemes, there are many examples where locals see the value of wildlife and limit activities to disturb/destroy the wildlife and instead seek to protect it.
In short, the world is still a very good place, it is an amazing place ...no problem if you don't want to travel and see it, but give it a passing thought when taking a single blinkered vision of environmental issues. I for one don't want to live in a low carbon world, if that means it is also a monoculture of nothingness.