It’s been 45 years since the Earth joined St. Patrick, St. Valentine and organized labor by having a day of its own.
April 22 marks Earth Day, established in 1970 to direct attention to the environment.
The U.S. Census Bureau takes a look by the numbers.
$9.8 billion: Revenues in 2012 for electric power industries using renewable energy including hydroelectric, wind, geothermal, biomass and solar generation.
697: The number of wind, geothermal, biomass, solar and other electric power generation establishments in 2012, up from 312 in 2007.
5,456: people employed in wind electric generation industries in 2012.
$5 billion: Revenues for the wind electric generation industry in 2012, the highest among industries using renewable energy.
2.4 million: Estimated number of homes nationwide heated by wood in 2013.
50,235: Estimated number of homes nationwide totally heated by solar power in 2013.
56.8 million: Estimated number of homes nationwide heated by utility gas in 2013; this represents 49.1 percent of all homes.
91 percent: Of newly built single-family homes nationwide in 2013 containing air conditioning.
17.9 minutes: Average time it took for workers in North Dakota and Wyoming to commute to work in 2013; this is the nation’s shortest average commute time.
32.5 minutes: Average commute time in Maryland, the nation’s longest.
882,198: Estimated number of people who commuted to work by bicycle in 2013.
4,000,459: Number of people who regularly walked to work in 2013.
82.3 percent: Increase in the number of nuclear electric power generation facilities in the U.S. in 2012, up from 79 in 2007 to 144.
Minus-32 percent: The drop in the consumption of coal by U.S. manufacturers from 2002-2010.
19.8 percent: Increase in the number of recyclable material merchant wholesalers form 2007-2012.
$93.5 billion: Sales for recyclable material merchant wholesalers in 2012, up 16.7 percent from 2007. Sales included $9.8 billion for paper products, $2.3 billion for plastics, $0.6 billion for glass.