science
What foods provide more than half the calories eaten by humans?
Wheat, corn, and rice
What does the first set of key concepts come from?
The Earth System Science
What is the definition of anthropogenic?
Result of human activity
What does the term “greenhouse gases” refer to?
The design of buildings called greenhouses that capture heat from the Sun and are commonly used for agriculture
What makes an open system?
Matter and energy can move freely, entering and leaving
Positive feedbacks can push climate change to what is called a _____
Tipping point
Brings the system variable back to a starting point
What fields offer complementary views of climate history?
Historical climatology, paleoclimatology, climate history, and the history of climate and society
What value do goods, services, or information have?
What context do historians study the past from?
Their own time