I for one try to convey how concerned I am about this to everyone in my vicinity.
One of my recent successes was to be able to get my grandparents to accept that there's a problem. We're still having our extinction booth at the local grocery store, once a month. There we present damages done to the eco system, current information about climate change.
Still; many people are not really getting the message.
The IPCC reports are a good contemporary equivalent of memento mori.