Climate Change 1
- Created by: sophie.rebecca_
- Created on: 09-05-16 16:36
View mindmap
- Climate Change
- What is climate?
- The expected weather patterns
- How do scientists tell what the past climate was like?
- Old drawings and photographs, written records, recorded dates of harvests, land forms, tree rings, ice sheets (carbon dioxide).
- What are the words for warm and cold periods? How long did they last in the Quaternary?
- Warm - Interglacials (10-15000 years) Cold - Glacials (80-100000 years)
- What is the Quaternary Period?
- The last 2.6 million years.
- What is the Holocene Period?
- Recent time, since the last ice age.
- What are the recent periods of cold and warm?
- Roman warm period, Dark ages, Medieval warm period, The Little Ice Age, Modern warm period.
- What is the eruption theory?
- The ash and gasses from volcanic eruptions get into the atmosphere and block the sunlight, causing cooling.
- How can asteroid collisions cause climate change?
- Asteroid causes dust and ash to go into the atmosphere, cooling the earth.
- What are sunspots? how do they affect the climate?
- The more sunspots, the more active the sun, causing warming.
- Explain the orbital theory:
- That the earths orbit changing shape from a circle to an ellipse alters the temperature.
- What happened in viking Greenland?
- The little ice age caused the colony of vikings to die out, along with too much deforestation, dependency on overseas trade and inability to adapt.
- What and when was the little ice age? What happened?
- Earth cooled down about 0.5-1 degrees, it was between 1300-1870. There was a great famine as crops would not grow, and people died of the cold.
- What were the two reasons why dinosaurs became extinct?
- Amassive change in climate caused by either a massive volcanic erruption or asteroid.
- What were the megafauna? Why did they become extinct?
- humans/predators, and climate change caused them to die out.
- What is climate?
Comments
No comments have yet been made