Climate Change

Climate Change: What is a Greenhouse Gas?

Why is it called the “Greenhouse Effect”?

A Map of the World

Visualizing How a Population Grows to 7 Billion

• http://www.npr.org/2011/10/31/141816460/visualizing-how-a-population-grows-to-7-billion

Population

Energy Consumption

Greenhouse Gas Emissions

What is a Carbon Footprint?

• Your carbon footprint is the sum of all emissions of CO2 (carbon dioxide), which were induced by your activities in a given time frame

Carbon Footprints World Wide

Ways to Reduce Our Carbon Footprints

• Take public transportation, walk, ride a bicycle, carpool• Switch to an electric or hybrid car• Less air travel• Use energy efficient lightbulbs and appliances• Recycle and reuse stuff• Don’t be wasteful• Eat food grown locally• Eat less meat

– If your four-person family skips steak 1 day a week [for a year], it’s like taking your car off the road for almost 3 months

Obesity World Wide