I've been looking at the work of Dr. Tim Lenton and his team on the Earth's climate system resilience. Their research highlights how the planet has historically maintained a relatively stable climate through feedback mechanisms, but recent anthropogenic forcing is pushing the system outside of its natural variability range. The long-term cooling trend over the past few thousand years is often cited, but that's in contrast to the rapid warming we're seeing now — a trend that's unprecedented in both speed and magnitude. The key isn't just the direction of the trend, but the rate and the drivers. The cooling trends were gradual and influenced by orbital cycles, not human activity. Today's warming is clearly driven by greenhouse gas emissions.