EPSC201 Lecture 23 Notes.doc

10 Pages
Unlock Document

McGill University
Earth & Planetary Sciences
EPSC 201
Anthony Williams- Jones

EPSC 201 Lecture 23 NotesWhat energy sources do humans exploit Mostly fossil fuelsFossil fuels are a product of lifeOur energy consumption in the 1800s was relatively low and has steadily risen sinceWe were mostly burning wood until coal was introducedThis had a huge environmental impactCoal consumption has been constant since it was discovered but oil has steadily risenNatural gas is now spiking upwards tooNuclear energy is also a recent introductionKey pointgraph is dominated by fossil fuelIn Quebec hydroelectric energy is highly importantGeothermal energy is also important in some countriesNote how the population of the planet has greatly increased as we have discovered new sources of energyThe middle graph displays the carbon dioxide concentration in the atmosphereIT was relatively constant for the past few thousand yearsCoinciding with the industrial revolution the carbon dioxide concentration has dramatically increasedThe bottom graph shows the temperature of the planet in the past 200 yearsThe temperature is increasing due to increases in greenhouse gas concentrationThe map below shows the oil distribution of the worldCanada Russia and the Middle East are the major players in oil productionThe USA also has a moderate amountWe are thinking about putting in oil pipelines to export oil around the world especially China who is growing and needs oilThe are larger reserves of tar sands betchemen in Venezuela than in CanadaIt is environmentally harmful to extract the oil from the tar sands The process is getting greenerThey now drill a vertical hole well and then drill a second well at the bottom of the firston a horizontal They pump steam down the first well which then travels horizontally into the groundThis heats a large area which causes the bitumen to drip down into the well which makes it able to pump up the oilThe hot steam or hot air heat the bitumen causing its viscosity to drop which causes it to flow into the wellFrom there it is able to be pumped out
More Less

Related notes for EPSC 201

Log In


Don't have an account?

Join OneClass

Access over 10 million pages of study
documents for 1.3 million courses.

Sign up

Join to view


By registering, I agree to the Terms and Privacy Policies
Already have an account?
Just a few more details

So we can recommend you notes for your school.

Reset Password

Please enter below the email address you registered with and we will send you a link to reset your password.

Add your courses

Get notes from the top students in your class.