Today
Know how ocean currents operateUnderstand how ocean currents impact
upon weather and the carbon cycleKnow how the carbon cycle
operatesKnow how scientists study climate changeUnderstand the
causes and results of climate change
Evidence of Climatic Change
Climates have and are constantly changingScientists have various
sources of evidence for this
Rocks
Fossil Landscapes
Dendrochronology
Historical records
Cave paintings of elephants in central SaharaGrape vines growing in
UK AD10002m deep graves in 13th Century Greenland, 1m 14th
century
Fairs held on frozen river Thames in Tudor timesMeasurements in
advances and retreats of glaciers and polar sea-ice
Causes of Climatic Change
Variations in solar energyAstronomical relationships between the
Earth and the SunChanges in oceanic circulationMeteoritesVolcanic
activityPlate tectonicsComposition of the atmosphere
