Download Chapter 18: Climate Change

Presentation by: Alex Hezik
18.1 – Atmosphere, Weather, and Climate
Layers of the Atmosphere
• troposphere: moderates flow of energy to
Earth; where weather occurs
•
tropopause: boundary region where air
shifts from cooling with height and
begins to warm
• stratosphere: contains ozone layer
• mesosphere and thermosphere: low
ozone concentrations with little to no
oxygen and nitrogen
18.1 – Atmosphere, Weather, and Climate
 Weather is the day-to-day variation in temperature, air
pressure, wind, humidity, and precipitation.
 Climate is the result of long-term weather patterns in a
region (typically over a 30-year period)
 Convection currents generally move in a west-to-east
pattern
 A front is a boundary where different air masses meet
18.2 – Climate Change Science
18.3 – Response to Climate Change
 Adaptation: making adjustments to the way things are
done in anticipation of changes brought on by rising
sea levels and temperatures in the future
 Mitigation: reducing greenhouse gas emissions
through a variety of strategies and policies