Any Current Cassandras?

Agreed. Put that together with loss/degradation of arable lands, and we might not have enough time for AGW and peak oil to become major concerns.

Speaking of agricultural concerns, how about the looming phosphate crisis?

Or in the US, maybe the depletion of the Ogallala aquifer?

Wait, does a Cassandra have to be where hardly anyone believes her or just that the people in power don’t react to their warning? Because I was seeing all sorts of people talk about the housing bubble back in like, '03. Tons of people believe in GW, peak oil, or whatever. Also, does it count if the people in power know about it but it’s better for their bank accounts or reputations to not do anything?

Maybe the widespread child abuse conspiracy counts. That’s like stuff out of a Chick tract.