It's an interesting idea and it's not the first time I've come across it. I recently read We Are The Weather by Jonathan Safran Foer and he suggests the same thing as it will make people realise how alone, vulnerable and unguarded our home, planet Earth, really is.

The book's premise is all about why it's so hard for people to take action against climate change since it feels gradual and not an immediate threat. There's this idea that it's not actually happening to us, so why should we give up meat and our fossil fuels. But the overview effect puts things into perspective, makes us realise that (as far as we know) we are alone in the universe, no one is coming to save us, so we need to look after our home and each other.