A group of 60 leading scientists warns that if the Earth continues its current levels of pollution and carbon emissions, average global temperatures will rise.
The ones in charge, and the ones that control them. And it's not that sane people realize the details, they just sense that things aren't right. Going further in to understand things is both boring science stuff and frightening, so they prefer to keep it easily dismissive in their head so they can function.
Alternative grass solutions are prettier, healthier, and there's some subconscious comfort in seeing the many species they attract to them. As opposed to when you realize how sterile a full, green lawn actually is. "Where's the butterflies?"