Presentation on theme: "SC.912.E.7.7 Identify, analyze, and relate the internal (Earth system) and external (astronomical) conditions that contribute to global climate change."— Presentation transcript:
SC.912.E.7.7 Identify, analyze, and relate the internal (Earth system) and external (astronomical) conditions that contribute to global climate change.
Day 1 What do the following terms mean? –Climate Change –Ozone –Infrared energy –Greenhouse Effect
Vocabulary –Climate Change Long term weather patterns –Ozone A gas found in the earths atmosphere (O 3 ) –Infrared energy Type of energy from the electromagnetic spectrum –Greenhouse Effect The trapping of infrared energy in the earths atmosphere
Describe four natural processes that can cause climate change?
Earth’s climate is constantly changing. Climate Change Antarctic Temperatures for Past 420,000 Years Thousands of years ago Temperature difference (°C) compared to present
Read passage from pgs 600-601 and Think-pair-share what you discovered
Earth’s climate is constantly changing. Climate Change Global climate changes can be caused by changes in Earth’s energy budget and by the interactions among Earth’s spheres. Causes for climate change include variations in Earth’s motions, the location of the continents, variations in sunspots, and gases and ash ejected into the atmosphere by volcanoes.
Natural Processes That Change Climates Climate Changes Volcanic Eruptions The presence of volcanic aerosols (ash, dust, and sulfur-based aerosols) in the air increases the amount of solar radiation that is reflected back into space. This causes Earth’s lower atmosphere to cool. Ocean Circulation Changes in ocean circulation also can result in short-term climate fluctuations.
Natural Processes That Change Climates Climate Changes Solar Activity When the sun is most active, it contains dark blemishes called sunspots. The formation of sunspots appears to correspond with warm periods in Europe and North America. Earth Motions Geographic changes in Earth’s land and water bodies cause changes in climate. Changes in the shape of Earth’s orbit and the tilt of Earth on its axis are other Earth motions that affect global climates.
Volcanic eruption Ocean circulation patterns Solar activity Earth Motions Describe four natural processes that can cause climate change?