National Geographic : 2000 Sep
For tree planting and care information, check our website at www.arborday.org. Clear The Air When you plant a tree you're helping the world breathe a little easier. Trees produce oxygen and remove carbon dioxide from the air, helping keep our planet's atmosphere in balance. Trees can help you breathe easier in even more ways. Well-tended trees can increase the value of your home up to 15% or more. Trees that shade your home from the hot summer sun and shield it from harsh winter winds bring energy costs down. They also provide food, shelter, and nesting sites for songbirds. The fact is we all benefit when we plant trees. For more information, write: Conservation Trees, The National Arbor Day Foundation, Nebraska City, NE 68410. Whether in the country or in town, trees can make a world of difference. SThe National Arbor Day Foundation® www.arborday.org ADVERTISEMENT advertiser.connections Get more information from our advertising partners about the products and services they advertise in National Geographic magazine. Remember, our advertisers help make possible the Society's mission of education, explo ration and research. To find out more, point and click to the following URLs: Allegra www.allegra.com Allstate www.allstate.com American Express www.americanexpress.com/Trade Andersen Windows www.andersenwindows.com British Airways www.britishairways.com/usa Canon www.canon.com Carlson www.24K.com Chevrolet Malibu www.chevrolet.com/malibu Chevrolet Tahoe www.chevrolet.com/tahoe Colombian Coffee www.juanvaldez.com Compaq www.athome.compaq.com Eveready Batteries www.energizer.com First USA www.firstusa.com/xcards/acards/ national_geographic Ford Taurus www.2000taurus.com Ford Escape www.mydreamescape.com GM Credit Card www.gmcard.com GMAC www.gmacfs.com Helmut Lang www.helmutlang.com L.L. Bean www.llbean.com Land Rover www.best4x4.1androver.com Lincoln LS www.lincolnvehicles.com Mastercard www.mastercard.com Meade Instruments www.meade.com Metlife www.metlife.com Nature Valley www.nationalgeographic.com/naturevalley Tasters Choice www.tasterschoice.com P&G Eubanuba www.eubanuba.com Ralston Purina www.purinaspecialcare.com Shell www.countonshell.com State Farm www.statefarm.com Subaru www.subaru.com Toyota www.toyota.com/usa Vantage Press www.vantagepress.com For more information regarding National Geographic Society products, mission-related programs and membership to the National Geographic Society, log onto www.nationalgeographic.com.