"It's important to rescue the frog." - Al Gore

Supplementary videos

From Billions to None: The Passenger Pigeon's Flight to Extinction
Nuisance Fish: jumping Asian carp
Why is Lake Michigan water so clear?
Ozone hole peaks over Antarctica (2008)
Greenhouse effect: demo in a bottle
Climate Change and the Yin-Yang of Polar Sea Ice: why is Antarctic sea ice increasing?
As polar ice recedes: Maine could become a hub for North America
Milankovitch Cycles: tutorial and animations

Extra credit readings

• 3 Billion to Zero: What Happened to the Passenger Pigeon? Scientific American 6/27/14
• Happy 40th Anniversary to the Parakeets of Hyde Park Chicago magazine 3/18/13
• Why Are Monk Parakeets Leaving Hyde Park? 3/21/16
• The Story of the Stephens Island Wren BBC 6/2/06
• Florida panthers bound back thanks to Texas mates Washington Post 9/23/10
• Bluefin Tuna National Geographic Magazine March 2014
• Two thousand mice dropped on Guam by parachute - to kill snakes NBC News 12/2/13
• McDonald's Pulls The Plug On Styrofoam Sustainable Business 9/27/13
• Greener, HFC-free refrigerator set to enter U.S. market in 2011 Washington Post 12/26/10
• EPA Approves Hydrocarbon Refrigerants for Commercial and Household Use Environment News Service 12/15/11
• Why New York banned polystyrene foam BBC 7/1/15
• Are Aerosols Still Bad for the Ozone Layer? Scientific American 9/4/08
• Greenhouse Effect on Venus Space Today Online 2005
• 2015 May Just Be Hottest Year on Record Scientific American 8/20/15
• The Popping of the Shale Gas Bubble Forbes 9/3/14
• Melting Ice Opens Fight Over Sea Routes for Arctic Debate Bloomberg Business 5/12/13
• NASA Study: Mass Gains of Antarctic Ice Sheet Greater than Losses NASA 10/30/15
• Milankovitch Cycles and Temperatures ClimateData

Additional material

• Why is Lake Michigan water so clear?
• Milankovitch cycles