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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

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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

� How this increase affect?

Result: the global warming

�Vegetation

� Ice cores

�Dendrochronology

�Glacial geology

�Mosquitoes

�Sea level change

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