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- El Niño is the cooling of temperature of 0.5 Celsius and it usually occurs in 2-7 years and usually lasts for nine months – two years -El Niño usually begins with trade winds and Kelvin waves across the pacific -In Canada El Niño caused warmer and drier winters. This was a reason for the warmer Vancouver 2010 Olympics -The effects of la Niña are the opposite of el Niño. La nino would cause a wet period -the signs of la Niño starting are a rise of surface pressure in Australia, Indian Ocean and Indonesia. Fall in air pressure in Tahiti and the rest of central and eastern the Pacific Ocean. Trade winds weaken and go east in the pacific. -there are three types of volcanoes: cone volcano, shield volcano and rift volcano -cone volcanoes are caused by the movements of tectonic plates. Shield volcanoes are caused by eruptions of low-viscosity eruptions. Rift volcanoes are caused by two plates diverging from another. -volcanoes can affect the climate in areas because when the erupt they send ashes and sometimes poisonous gases into the air and reducing the solar radiation on the earth. -is when moving air changes directions and deflects winds to the right of the northern hemisphere and to the left of the southern hemisphere -it causes significant changes in temperature - [] - [] - [] - [] -BC science 10 – McGraw-hill Ryerson
 * __ Natural Phenomena Can Effect Climate __**
 * __ El Niño __**
 * __ La Niña __**
 * __ Volcanoes __**
 * __ Cariolis effect __**
 * __ Bibliography __**