On the Fact that (According Vostok Ice Core Samples) Approximately 18,000 Years Ago, CO2 Levels Dropped Down to a Perilously Low 180 Parts per Million (Once CO2 Falls Below 150, Life Ceases to Exist)

And being that CO2 levels in the past have been astronomically higher than today's modest level of just over 400, with life flourishing all over the globe (not humans because we weren't around), perhaps we can all just tone it down a bit, no (you know, as opposed to crushing the world's economy, etc.)?