Link] and is being celebrated this year under the theme 'Tourism and Biodiversity', which chimes well as this year is the UN International YEAR of Biodiversity.
"Sustainable tourism can result in positive impacts for biodiversity conservation. There can be no doubt that tourism and biodiversity are closely interrelated."I'm not entirely sure about the second half that sentence; I know that much tourism is strongly linked to biological diversity (SSSI, protected areas, some islands or beaches, coral reefs, wildlife viewing etc.) but has anyone done any work studying the negative impacts of all the 'footprints' made whilst doing this tourism. I'm sure they have, yet the one and only common factor IMHO in the loss/damage to ecosystems is us: humans. An agricultural landscape is it's own ecosystem, so are cities and "biodiversity" is the variety of ecosystems interacting with one another but when humans form part of the community bad things start to happen. All the biodiversity, green issues, air, water, soil, mountains, deserts, oceans, lakes, rivers, plains, wetlands, forests, woods...loving the planet etc will all come to nothing if the one problem overriding all others isn't dealt with: human population and feeding it*; the year global human population reached one billion is estimated to have been 1804; since then - naturally! - the number of years between billions has shrunk alarmingly: "two billion in 1927 (est), three billion in 1960, four billion in 1974, five billion in 1987, and six billion in 1999"...you see the very clear pattern.
* I have no doubt that we WILL be able feed it; that isn't the issue.