‘When is it ‘weather’ and when is it ‘climate’?’ #12 My perspective on climate change

One of the frustrating aspects of the ‘climate change’ debate is the confusion between two frequently used terms — ‘weather’ and ‘climate’. NASA distinguishes them this way: Weather is what conditions of the atmosphere are over a short period of time, and climate is how the atmosphere “behaves” over relatively long periods of time. Some wag said that climate is what you expect, weather is what you get. You won’t find much more helpful definitions than these. Conventionally, ‘climate’ is the average over thirty years. ‘Climate change’ is therefore conventionally defined as what we learn by comparing thirty-year periods. Unfortunately, we don’t have … Continue reading ‘When is it ‘weather’ and when is it ‘climate’?’ #12 My perspective on climate change