Haily Zaki and Brian Tuey trekked four miles up southern California’s San Gabriel Mountains with 32 friends, accompanied by pack mules carrying granola bars
and organic lamb. There, in a propane- and hydro-powered campsite dining hall bedecked with pine cones, they exchanged . Tara Brown and Michael Selders incorporated 21 into their wedding at Houston’s Four Seasons Hotel. To make up for the pollution caused by their honeymoon flight to Hawaii, the Selderses purchased carbon offsets, a means of reducing carbon emissions by contributing money to plant trees or develop renewable-energy projects. Dana Wilmert wore a 1950s sea foam green prom dress purchased for $1 from a thrift store when she married Johnny Damm in DeLand, Fla. She made the paper for her invitations and stitched magazines together to make the envelopes. At the reception, her guests ate served on biodegradable bamboo plates, which were later composted. For these