We experience the weather every day, but Earth’s climate is a dynamic system that has been changing in response to geologic processes since our planet formed over 4 billion years ago. We are now at a point in time where several key components of our atmosphere have reached levels not seen in more than 800,000 years and are changing more rapidly than humans have ever experienced. This presentation will include a discussion of the scientific basis for climate change, the potential role of human activity in these changes, and potential impacts that may result.