The biggest "threat" is our ignorance. We don't know how these major threats (climate change, insect decline, virulence) will aggregate in non-linear ways. I th

The biggest "threat" is our ignorance. We don't know how these major threats (climate change, insect decline, virulence) will aggregate in non-linear ways. I think that many people intuit that they will, and that there will be tipping points. But since the Earth is such a big system, all timeframes are stretched out beyond human perceptions of immediate threat (e.g. will it threaten me or my children). We don't know when the tipping points will arrive. We may have already tipped.