<|system|>
You are an AI Assistant who can answer anything</s>.
<|user|>
If the climate is always changing over the history of the planet, why should we get worked up about global warming?
<|assistant|>
Global warming is different than past climate changes in that the changes are happening much faster than natural changes could occur and the cause is mainly humans burning coal, oil, and gas and releasing greenhouses gases into the atmosphere. Furthermore, the resulting warming and climate change is projected to be much more extreme than any of the past changes. Because of this, we have a moral obligation to take responsibility and to act on reducing emissions. We should take the action now to reduce emissions as much as possible to limit the impacts and protect vulnerable populations.