Habitable Planet (2007)

Index
Peter's DVD rating: 3.5 stars
GE105 .H335 2007 (Circulation Desk)
4:00Disc 1 Unit 1: Many Planets, One Earth Rise of oxygen 2,5 BYA - 580 MYA 5:20 Stromatolites 3.5 BYA seen today in Bahamas, Australia 7:00 Banded iron formed 1.8 BYA
7:40 Iron entered through geothermal vents 10:15 Sterol indicates eukaryotes 11:00 Oxygen is required in chemical pathway
13:00 Snowball earth : gliciers in Namibia; though solar radiation has increased 30% in 3.5 BY. 16:00 Volcanic activity provides CO2, weathering (temperature-dependent) consumes it - global thermostat. 18:15Partial ice age 580 MYA left rocks in till (Squantum, Massachusetts), followed by sedimentary layers
22:00 2 episodes of Snowball earth 710 and 635 MYA. 22:30 Continents aound equator: weathering removes CO2 - global cooling 23:00 Albedo leads to snowball earth.
24:00Plate tectonics counteracts albedo to warm earth, Cambrian explosion 530 MYA 0:00Disc 1 Unit 2: Atmosphere 0:00Disc 1 Unit 3: Oceans
0:00Disc 1 Unit 4: Ecosystems 0:00Disc 2 Unit 5: Human Population Dynamics 0:00Disc 2 Unit 6: Risk, Exposure, and Health
0:00Disc 2 Unit 7: Agriculture 0:00Disc 2 Unit 8: Water Resources 0:00Disc 3 Unit 9: Biodiversity Decline
0:00Disc 3 Unit 10: Energy Challenges 0:00Disc 3 Unit 12: Earth's Changing Climate 0:00Disc 4 Unit 13: Looking Forward: Our Global Experiment
oxygen
4:00 Rise of oxygen 2,5 BYA - 580 MYA
stromatolites
5:20 Stromatolites 3.5 BYA
banded iron
7:00 Banded iron formed 1.8 BYA
vents
7:40 Iron entered through geothermal vents
sterol
10:15 Sterol indicates eukaryotes
oxygen pathway
11:00 Oxygen is required in chemical pathway
snowball earth
13:00 Snowball earth : gliciers in Namibia;
volcanic
16:00 Volcanic activity provides CO2,
layers
18:15 sedimentary layers
snowball earth2
22:00 2 episodes of Snowball earth 710 and 635 MYA.
CO2
22:30 Continents aound equator: weathering removes CO2 - global cooling
albedo
23:00 Albedo leads to snowball earth.
Cambrian explosion
24:00 Cambrian explosion 530 MYA
   

Index Nov 16, 2010 CC BY 4.0 Peter Chen 2.0