climate change
Post on 05-Jun-2015
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� Climate change: refers to any significant change in measures of climate lasting for an extended period.
CLIMATE CANGE
Natural changes Human actions
Produced by
� Plate tectonics� Solar output� Volcanism� Oceans variability� Human influences
It is important and necessary for which the Earth is kept warm.
¿Why is it a problem?
Less than 1% of greenhouse gases (Methane, Carbon dioxide, Dioxide of nitrogen) they are vital.
But the proportion of these gases has
increased significantly.
Earth gases
78%
21% 1%
Nitrogen
Oxygen
Greenhouse gases
�Vegetation
� Ice cores
�Dendrochronology
�Glacial geology
�Mosquitoes
�Sea level change
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