Climate Long term weather patterns www.blueplanetbiomes.org.

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Presentation transcript:

Climate Long term weather patterns

Factors Affecting Climate Altitude Latitude Currents go-passport.grolier.com

Altitude How far above sea level you are The farther up, the cooler the climate is. With climate change, people are moving farther up mountains to avoid mosquitoes.How does this impact other organisms? news.bbc.co.uk/2/low/science/nature/ stm

Latitude How far north or south of the equator you are. Equator receives direct sun rays. The farther from the equator the greater the angle of incidence of light, thus the cooler the climate schools-wikipedia.org/wp/e/Effect_of_sun_angl...

Currents Wind Currents Ocean Currents

Wind Currents Air moving across the warm waters of the North Atlantic moderate the Climate of Northern America and Western Europe

Wind Currents The Jet Stream moves south of us during the winter, pulling cold Artic air from the NW into Michigan. Fast moving systems from the Canadian Rockies are called Clippers.

Wind Currents During the summer, the Jet Stream moves to the north of Michigan. Air from the Gulf of Mexico travels from the SW to bring moisture and warmth to Michigan

Wind Currents

Ocean Currents The North Atlantic Current is the “Conveyer Belt” that moderates our climate Warm less dense water from the Equator travels on the surface to the north Winds moving across the N. Atlantic pick up the heat and transfer it to W. Europe and N. America thedifferencemagazine.blogspot.com/2007/08/no...

Ocean Currents Glacial melt at the poles creates cold dense water that sinks and travels to the equator. This drives the warm less dense water to the surface and pushes it northward nsidc.org/.../factors/land_sea_distribution.html

Ocean Currents What is the future of the N. Atlantic Current if there is no glacial melt? What becomes of the Climate in the Northern Hemisphere?

Earths Climatic History Earth’s Climate is like a pendulum. It naturally swings between extreme heat and cold over long periods of time. 100 mya 200 mya 300 mya 65 mya 1.6 mya Eocene

Earths Climatic History img62.imageshack.us

Evidences of Climate Change Ice Cores Indicate varying levels of CO 2 in the atmosphere. Sediment Cores During periods of elevated CO 2 in the atmosphere sediment cores indicate a warm climate

Effects of Climate Change on Temperature and Precipitation

Effects of Climate Change on Biodiversity Genetic Adaptations require long periods of time to evolve. Rapid climatic changes cause significant changes in food webs and mass extinctions

Cataclysmic Events causing Climate Change Supervolcano Eruptions “Snowball Earth” effect causing mass extinctions ~95-99% Asteroid strikes caused a ~80% extinction. edu/aiz/teaching/a204/im ages/snowball_earth.gif llowstone.htm m/?q=content/meteor-s...

Effects of Global Warming flatplanet.wikispaces.com

Effects of Global Warming eospso.gsfc.nasa.gov/eos_observ/9_10_95/p07.html

Climate change can involve abrupt flips. The most likely cause is a disruption in the N. Atlantic current. These have been natural occurring events over Earth’s history.

Greenhouse Earth Effect CO 2 is rising faster than at any period in recent history. Will man cause the next climate change before its time? If so what is the effect on Michigan?