Investigative work could look for evidence that climate change is impacting upon coastal resorts in the UK (with statistical analysis of visitor-numbers and changing global or local temperatures over the last two decades). Of course, any correlation will need to be thought about critically: rising affluence and the advent of online booking through the same period could also account for changes in visitor numbers (observed impacts may thus be multi-causal). Such a resort study may very well conclude that climate change is initially having a positive impact on UK coastal resorts. But will business be sustainable if temperatures rise further? And what about sea-level rises?
More generally, the challenge of climate change could also be turned into a central theme for any investigation that looks at attempts to stimulate economic development through tourism (including urban / rural "re-branding" schemes). Where an enterprise relies upon the physical environment (climate, coast, ecosystems), could the physical resources for tourism be under threat in future? Also, might tourist-based industries suffer if green taxes are introduced in response to the threat of climate change? Green taxes might reduce tourist numbers and reduce levels of consumption. An inquiry title such as "To what extent does The Jurassic Coastline provide a sustainable future for Swanage?" could certainly explore both these themes.
Other suggestions for practical-based inquiries include: