Chapter 28.4 Flashcards
an increase in the average temperatures of Earth’s near surface air and oceans
global warming
the warming of the Pacific Ocean off the coast of western South America that occurs every 3 to 10 years
El Nino
occurs when trade winds in the Pacific are unusually strong and surface water is colder than normal
La Nina
what are 2 climate changes that earth undergoes
seasonal and long-term
how do seasonal changes happen
when earth revolves around the sun
which hemisphere is in summer
the hemisphere that is tilted towards the sun
what is the period of time where earth’s surface was covered in ice
The Ice Age
how long ago did the world climate reach its current pattern
about 3,000 years ago
what are some factors that cause climate change
earth’s axis, the shape of the orbit, the timing of the seasons
how do humans create climate change
energy consumption, deforestation, industrial and agricultural practices
what is deforestation
involves the clearing of large areas of forest land
how does deforestation affect climate to increase
trees remove carbon dioxide but if there are nor trees then more carbon dioxide will be absorbed into solar radiation
what are the 2 ways that the carbon cycle is affected
deforestation and loss of vegetation
