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Why do scholars and the public use the term “climate change”
to describe a complex process of changes in the natural world
Earth System Science
a relatively new approach to studying the natural world as a connected whole with a focus on the interactions between the Earth System’s subsystems: the geosphere, hydrosphere, atmosphere, and biosphere
Atmosphere
one of the subsystems in the Earth System; the layers of gases encircling the Earth
What is the first key concept that serves as the foundation for what “climate change” means
Earth System Science
What is the second set of key concept that serve as the foundation for what “climate change” means
how scholars create and organize our knowledge of past climates
What is the third set of key concept that serve as the foundation for what “climate change” means
Anthropocene
Subsystems
a classification within Earth System Science consisting of the geosphere, hydrosphere, atmosphere and biosphere
What are the four subsystems of ESS
geosphere, hydrosphere, atmosphere, biosphere
Forcings
factors that are external to a climate system and influence climate change, such as volcanic activity, solar variations, and greenhouse gases
What are the reactions when forcings alter the climate
positive feedbacks or negative feedbacks
Scales
– factors that are external to a climate system and influence climate change, such as volcanic activity, solar variations, and greenhouse gases
What is an example of a large scale
an entire ocean could warm, causing changes to levels of moisture in the air over a large area
what is an example of a small scale
a single stream might dry up chaning a local ecosystem
What does the geoshphere encompasses?
all the land, earth, and rock that make up the planets
What is another term for geosphere
Lithosphere
Geosphere (Lithosphere)
one of the subsystems in the Earth System; the earth and rock that comprise the Earth
Geological times scale
Hydrosphere
Cryosphere
Why is the hydrosphere the most well-publized aspects of current climate change focus
Because of the melting of the cryosphere at the planet’s North and South Poles, the warming of oceans and sea level rise, and increasingly severe droughts and flooding around the world.
What are the atmospheric zones or layers
lowest to highest altitude is the troposphere, stratosphere, mesosphere, and thermosphere
Greenhouse gas effect
Biosphere
