Solastalgia

I first heard our friend Geraldine mention the word solastalgia, which, according to TreeHugger means: 

"a form of homesickness one gets when one is still at home," according to Australian philosopher Glenn Albrecht; in essence, it's pining for a lost environment. It's the mashup of the roots solacium (comfort) and algia (pain), which, when combined, forms a term (and an idea) reminiscent of nostalgia.

Coined from responses from interviews Albrecht conducted over the past few years, the word describes Australians' deep (and growing) sense of loss as they watch the landscape around them change. "They no longer feel like they know the place they've lived for decades," he says.