"Yes. And more." Philip wades out a little deeper, gasping at the water lapping up to kiss dry skin. "There was a meteor. It caused famines, shortages, nations went to war. The wars sped up the climate degradation, the meteor had already caused massive damage and a nuclear winter added to it. It was a lot of things. We'd managed to change the meteor impact, deflect it, which has undoubtedly changed events from my original timeline, but I haven't been updated on those changed yet. I was due for updating sometime in the next three months, probably."