April 21st, 2012
11:46 AM ET
Happy Earth Day, everybody! More than a billion people in 192 countries take part in Earth Day activities, according to Earth Day network.
By the numbers:
4.43 – Pounds of "municipal solid waste" generated per person in the United States each day in 2010.
34.1 – Percent of "municipal solid waste" that ends up getting recycled.
43,271.4 – Percent change in CO2 emissions in Namibia since 1980, the highest in the world. (Not a typo!)
55.43 tonnes – CO2 emissions per capita in Qatar for 2007, the highest in the world.
5 – Percent of Americans who are vegetarian.
16,500 – Number of "Energy Star" certified buildings in the United States.
6 – Cities in California on the list of Top 25 Cities in the United States with the most "Energy Star" certified buildings.
8 – Cities in California in the Top 10 on the list of the Most Ozone-Polluted Cities in the United States.
7 – Number of different SPI Resin Identification codes for recycling on plastic goods.
39 – States with laws regulating the use of these codes on 16 oz bottles.
35 – Percent of hybrid car owners who buy another hybrid when they get a new car.
2.4 – Percent of the "new vehicle market" claimed by hybrid cars in 2011.
81 – Percent who switched regular light bulbs with energy-efficient compact fluorescent bulbs.
70 - Percent who use reusable grocery bags instead of plastic or paper bags at the store.
1.2 million – Homes in the United States that use solar power.
Post by: CNN's Amy Roberts
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